On June 30, the Rangers lost to fall to 41-44, 10th place in the American League. Then they turned it on. Since the calendar flipped to July, they’ve gone 16-8 and rocketed into the playoff picture. They’re tied with the Mariners for the last AL Wild Card spot. With their sights now set on thriving in October, they needed to reinforce a pitching staff that has been quite good up top but got shakier as you went down the depth chart, and the Diamondbacks were happy to oblige. As Ken Rosenthal first reported, the Rangers are getting Merrill Kelly in exchange for Kohl Drake, Mitch Bratt, and David Hagaman. They also acquired Danny Coulombe and Phil Maton in separate deals to shore up the middle of their bullpen.

Texas has a famous starting rotation. The two stars, Jacob deGrom and Nathan Eovaldi, need no introduction. Second on the team in innings, slightly ahead of Eovaldi? That’d be World Series winner Patrick Corbin, famous both for his high highs and low lows. The back of the rotation? Jack Leiter and Kumar Rocker, famous college teammates before they were famous prospect teammates. But Leiter and Rocker have been flat this year, and Corbin was bad enough for long enough that I’d be a little scared of counting on him. Tyler Mahle, another celebrated Rangers starter, has been out since June. Jon Gray is headed for free agency and has perhaps been banished to the bullpen for the remainder of 2025. And it’s not like deGrom has been the paragon of health over the last few years.

Kelly lengthens the playoff-ready portion of Texas’s rotation immediately. His career 3.74 ERA and 3.97 FIP are accurate representations of his work, as are his 22% strikeout rate and 7.4% walk rate. In other words, he’s a perfect mid-rotation arm, better than average (he’s managed a 3.22 ERA and 3.53 FIP this season) but squarely short of an ace. He’s 36 and a free agent after this year, which limits his return somewhat, but he’s a dependable playoff starter and thus a very desirable deadline target. Read the rest of this entry »

For the second time in eight days, the Mariners have upgraded their lineup by landing a corner infielder from the Diamondbacks in exchange for multiple prospects. On July 24, they acquired first baseman Josh Naylor in exchange for a pair of young pitchers, and on Wednesday night they brought back All-Star third baseman Eugenio Suárez for a three-prospect package.

The full trade sends the 34-year-old slugger, a pending free agent, to Seattle in exchange for 24-year-old first baseman Tyler Locklear, 24-year-old righty Hunter Cranton, and 25-year-old righty Juan Burgos; both Locklear and Burgos have a bit of major league experience. This is Suárez’s second go-round in Seattle. President of baseball operations Jerry Dipoto previously acquired him and Jesse Winker from the Reds as part of a six-player deal in March 2022, one driven in part by Cincinnati’s desire to dump the last three years and $35 million on Suárez’s contract. He served the Mariners well, totaling 53 homers and 7.8 WAR with a 118 wRC+ in two seasons, and helping them end their epic playoff drought in 2022. Dipoto traded him to the Diamondbacks in November 2023 for Carlos Vargas and Seby Zavala, and he’s been even more productive in Arizona, clubbing 66 homers and 7.0 WAR with a 127 wRC+.

Those Arizona numbers conceal a major turnaround:

Read the rest of this entry »

The weekend before the trade deadline was light on big names moving — poor Eugenio Suárez has probably had to take his phone charger out of his go bag a dozen times this month — but we did see plenty of preliminary action. The Orioles began their sell-off by shipping hard-throwing left-hander Gregory Soto up to the Mets. Meanwhile, the Royals sought to maintain their spot on the postseason wait list by picking up a right-handed bat from Arizona: not Suárez, but Randal Grichuk.

Finally, the Braves picked up some reinforcements for their injury-riddled rotation, tossing the Cardinals a player to be named later or cash in exchange for the right to jump the waiver line on recently DFA’d right-hander Erick Fedde. Read the rest of this entry »

The deafening quiet of this year’s July trade market was disturbed on Thursday night with the announcement that the Seattle Mariners were acquiring first baseman Josh Naylor from the Arizona Diamondbacks. Naylor has provided more than respectable offense for the Snakes this year, hitting .292/.360/.447 with 11 homers, good for a 123 wRC+ and 1.4 WAR. Heading to the desert in return are two minor league pitchers, lefty Brandyn Garcia and righty Ashton Izzi.

While the Diamondbacks have generally disappointed in 2025, little of the fault can be placed at Naylor’s feet. The team expected to compete in 2025, but lost Christian Walker to the Astros in free agency, so the hope was that Naylor would fill the hole for a year before hitting the open market himself. He was never going to be an elite defensive first baseman like Walker, but the expectation was that he would at least provide a similar level of offense. Naylor is likely to fall well short of his career-high 31 homers from 2024, but he’s compensated for that by adding nearly 50 points of batting average, meaning his 123 wRC+ is actually slightly higher than his 119 mark from last season.

If the season ended today, the Mariners would make the playoffs as the second AL Wild Card, and the five-game separation between them and the division-leading Astros is not an insurmountable distance. Houston’s edge in the AL West seems even smaller when you consider how much of its lineup is currently out hurt. The injured quartet of Yordan Alvarez, Isaac Paredes, Jeremy Peña, and Jake Meyers would represent a huge chunk of any team’s offensive value. First base has been a particular source of trouble for the M’s this year, with their first basemen ranking in the bottom third in baseball with a combined 0.4 WAR. The original plan had been for Luke Raley to get the lion’s share of the playing time at first, mostly against righties, with fill-ins around him to take care of the southpaws. However, injuries to Mitch Haniger and Victor Robles thinned out Seattle’s corner outfield and DH depth and pushed Raley mostly to right field. As a result, the team was forced to give a lot of playing time to Rowdy Tellez; he posted an execrable .249 on-base percentage with the Mariners before they dropped him in June.

Naylor is not a superstar, so naturally, his acquisition doesn’t dramatically change the face of the AL West race. After last night’s win over the Angels, ZiPS gave the Mariners a 76% chance to make the playoffs and a 24% probability to win the division. These numbers would be 72% and 21% without the trade.

So, what’s the cost for their new first baseman? Neither Garcia, nor Izzi was torching up the prospect lists, but then again, Naylor is a free agent after the season, making this trade is a pure short-term rental. The 25-year-old Garcia has already made a brief major league debut, and since I don’t believe the Diamondbacks are going to go full rebuild, that has a lot of allure over the compensation draft pick they would have gotten if they’d held onto Naylor and he’d signed elsewhere this offseason. Garcia is a hard-throwing lefty sinkerballer with a three-quarters delivery who predictably induces a lot of grounders. My colleague Eric Longenhagen gave him a 40+ FV when Seattle’s top prospects list was published last month.

The ZiPS projections see Garcia as a solid, though unspectacular, mid-bullpen arm with at least some upside.

As a 21-year-old in High-A ball, Ashton Izzi has more developing to do than Garcia, but even with decidedly mixed results, the righty showed enough upside for Eric to also give him a 40+ FV. According to Eric, Izzi boasts a four-seamer that sits around 94 mph with solid movement. He gets “near elite” extension with his fastball, but it doesn’t generate many whiffs. Izzi also has a usefully average two-seamer, Eric says, as well as a sweeper and a cutter; the sweeper is a big swing-and-miss pitch for him. His changeup is mediocre, and Eric is concerned that Izzi will struggle to develop a good weapon to wield against lefties. Overall, per Eric, if Izzi can clear his developmental hurdles, he can make the majors as a starter.

In all, I think getting two real prospects, one who can impact the parent club immediately, is an absolutely fair return for Naylor. The Mariners have only two playoff wins over the last two decades, and now is the time to go all-in to add to that total. Their offense is better this season than in previous years, but they still needed to fill their hole at first base, and Naylor represents a major upgrade over what they had before.

The Arizona Diamondbacks, like King Solomon confronted with a baby, split their first 100 games straight down the middle. With the trade deadline looming a week from Thursday, the Diamondbacks could use a little wisdom right now, because it’s tough to tell whether they should buy or sell.

As of this writing, Arizona sits in fourth place in the NL West, nine games behind the Dodgers. Even after sweeping the Cardinals, a direct Wild Card rival, over the weekend, the Snakes still need to leapfrog four teams — including St. Louis — in order to slither in to the National League’s final Wild Card position. Five and a half games out of the playoffs with 61 games to go is a substantial hill to climb, especially for a team that’s been devastated by injuries. And the Diamondbacks, with their plethora of impending free agents, could command the market if they chose to sell.

Selling is the pragmatic move, the temperate move, the sustainable move, the move for the guys with the longest view in the room, and all the other business school-informed malarkey that gets spouted by the quarter-zips upstairs.

Poppycock, says I. Don’t listen to them, or my colleague Jay Jaffe. The Diamondbacks should go the other direction, and buy at the deadline. Read the rest of this entry »

This was supposed to be the Diamondbacks’ year. After sneaking into the playoffs in 2023 with just 84 wins, then scoring upset after upset to reach the World Series, they improved to 89 wins last year, missing out on October only due to a tiebreaker. The near-miss stung, but the response — signing Corbin Burnes to head their rotation, and keeping the rest of their core intact en route to a club record payroll ($197 million) — made sense. Unfortunately, things haven’t panned out this season, and as the July 31 trade deadline approaches, I believe the Diamondbacks would be best served by selling. (My colleague Michael Baumann feels differently, and will soon make the case on why they should approach the deadline more aggressively.)

Arizona isn’t a bad team. The Diamondbacks have gone just 50-51, but they’ve outscored their opponents by 17 runs; they’re roughly two wins shy of their PythagenPat-projected record and three wins shy of their BaseRuns-projected records. But they’re also running fourth in the NL West, nine games behind the Dodgers (59-42), and they’re 5 1/2 games out of the third NL Wild Card spot, currently occupied by the Padres (55-45), with the Giants, Cardinals, and Reds (all 52-49) between them. It’s not the distance that’s working against them with 61 games to play, it’s the traffic. With so many teams vying for playoff spots, the Diamondbacks have just a 14.9% chance of reaching the postseason — better at least than the Reds (10.8%) — but their odds of winning the World Series are down to 0.7%. It’s tough to envision them making a deep October run not only without Burnes, who underwent Tommy John surgery in June, but with lesser versions of Zac Gallen, Brandon Pfaadt, and Eduardo Rodriguez than they expected. Read the rest of this entry »

Merrill Kelly is having a rock-solid season. Over 21 starts comprising 122 innings, the 36-year-old right-hander has a 9-6 record to go with a 3.32 ERA and a 3.48 FIP. Those numbers are pretty much par for the course. Over the past three-plus seasons — all with the Arizona Diamondbacks — Kelly has made 97 starts and gone 39-22 with a 3.42 ERA and a 3.75 FIP. Neither overpowering nor of ace quality, Kelly is nonetheless a good pitcher who adds value to a big league rotation.

He could soon be taking the mound for a different team. Signed by the D-backs in December 2018 following a four-season stint in the KBO, Kelly is now on the doorstep of free agency; should Arizona decide to be sellers at the deadline, he could find himself in another team’s uniform come August 1. If that happens, the club that acquires him would be getting a known commodity. He has put up between 2.2 and 3.2 WAR in four of his last five seasons, with the exception coming last year, when injuries limited him to just 13 starts and 73 2/3 innings. His overall big league ledger reads: 62-49, 161 starts, 946 1/3 innings, 3.76 ERA, 3.97 FIP, 13.9 WAR.

With free agency looming, I spoke with the veteran hurler earlier this year about his approach to pitching, his evolution on the mound, and his steady performance since returning stateside.

“That’s an interesting question,” Kelly replied when asked how how he gets hitters out. “I would say that I do it in a lot of different ways. Ideally, I would like to get them out on as few pitches as possible. I guess you’d consider that a little bit more old school. Read the rest of this entry »

If you followed along with my Replacement Level Killers series, you’re no doubt familiar with the disheveled state of the Twins. After last year’s epic late-season collapse, Minnesota started slowly, clawed its way back into contention, and then stumbled during a 9-18 June; the team is now 48-51 with 17.5% Playoff Odds, still good enough to qualify for my series highlighting the weakest spots on contenders. Within that series, the Twins made a major league-high five appearances: at catcher, first base, second base, third base, and right field. An underrated part of their struggles is their defense. To the extent that they can still be considered contenders, their glovework stands out as the worst of any playoff hopeful based upon the methodology I used to identify the best team defenses thus far a few weeks ago.

Along with that piece, this is part of my annual midseason dip into the alphabet soup of defensive metrics, including Defensive Runs Saved (DRS), Statcast’s Fielding Run Value (FRV), and our own catcher framing metric (hereafter abbreviated as FRM, as it is on our stat pages). Longtime standby Ultimate Zone Rating has been retired, which required me to adjust my methodology.

On an individual level, even a full season of data isn’t enough to get the clearest picture of a player’s defense. Indeed, it’s not at all surprising that samples of 800 innings or fewer produce divergent values across the major metrics; different methodologies produce varying spreads in runs from top to bottom, spreads that owe something to what they don’t measure, as well as how much regression is built into their systems. Pitchers don’t have FRVs, and DRS tends to produce more extreme ratings (positive and negative) than Statcast. But within this aggregation, I think we get enough signal roughly 60% of the way through the season to justify checking in; I don’t proclaim this to be a bulletproof methodology so much as a good point of entry into a broad topic. Read the rest of this entry »

On Friday, Ben Clemens laid out five fun things to watch during the second half of the 2025 season. The one that caught my eye was the race to lead the league in bunts for base hits. The contestants all make plenty of sense. The group of Kyle Isbel, Jacob Young, TJ Friedl, Victor Scott II, and Xavier Edwards includes four light-hitting, fleet-footed center fielders and one light-hitting, fleet-footed shortstop. But there’s another bunting race going on, and in it, these four speedsters – along with everyone else in baseball – are getting dusted by Jose Herrera, the Diamondbacks backup catcher whom Statcast rates as the 491st fastest out of 510 qualified players this season. It’s the race to lead the league in sacrifice bunts, and no one in baseball is quite so eager to choose the greater good over their own personal gratification than Herrera.

Actually, that’s not entirely true. Herrera is tied for fourth in attempted sac bunts. He just leads the league because he’s batting a thousand on his attempts. (Not literally, of course; a successful sac bunt doesn’t count toward your batting average at all.) The other players I’ve mentioned have failed, fouled, or whiffed on their bunts a lot, but not Herrera. We’re going to put Herrera’s proclivity for the sacrifice into context a little later, but let’s start with the obvious question. Why does Herrera bunt so much? It can’t just be because he’s good at it. It’s certainly not because he thinks he can beat out a hit with his third-percentile sprint speed. Often enough, he’s not even pretending to run hard. On this play, it’s not so much that he’s sacrificing himself as it is that he’s just kind of surrendering. Read the rest of this entry »

Today the Killers list turns the corner — or rather turns to the teams receiving less-than-acceptable production in the outfield corners. While still focusing on clubs that meet the loose definition of contenders (a .500 record or Playoff Odds of at least 10%), and that have gotten about 0.6 WAR or less out of a position thus far (which prorates to 1.0 WAR over a full season), I’ve also incorporated our Depth Charts’ rest-of-season WAR projections into the equation for an additional perspective. Sometimes that may suggest that the team will clear the bar by a significant margin, but even so, I’ve included them here because the team’s performance is worth a look.

As noted previously, some of these situations are more dire than others, particularly within the context of the rest of their roster. I’ve batched the two corners into one supersized roundup because three of the seven teams below the WAR cutoff for left field also make the list for right field, and because there’s plenty of crossover in play with regards to personnel. The capsules are listed in order of their left field rankings first, while noting those crossover teams with an asterisk. As always, I don’t expect every team here to go out and track down upgrades before the July 31 deadline, but these are teams to keep an eye on.

Royals*

Good grief, somehow Royals corner outfielders have combined for -3.8 WAR, suggesting that the 47-50 team would be over .500 if it had found some typically unremarkable replacement level outfielders to fill those posts. Manager Matt Quatraro has used nine left fielders and eight right fielders, with some crossover between the two. Somehow, only one player at each position has managed even a 100 wRC+ in their thin slice of playing time, namely Jonathan India in left and Drew Waters in right. India, who’s played all of 21 games in left, is new to the position at the major league level; his glove is a liability no matter where you put him and he’s hitting just .251/.332/.348 (91 wRC+) overall. Waters, who’s played 41 games in left, 21 in right, and 22 in center, has hit just .243/.288/.316 (66 wRC+) overall, suggesting his 105 wRC+ in 53 PA in right is a fluke. Mark Canha has collapsed to a 49 wRC+ with career worsts in just about every key Statcast category, though his stints on the injured list for an adductor strain and (currently) tennis elbow have possibly contributed to his woes. None of the other principals at either corner has spent time on the IL.

Hunter Renfroe, who began the year as the regular right fielder, was a full win below replacement before he was released in late May. Jac Caglianone, a 22-year-old 50-FV prospect who has taken over right, has been the next-worst, at -0.9 WAR. Caglianone entered the season ranked no. 47 on our Top 100 Prospects list but had never played above High-A; he’s hit a cringeworthy .140/.196/.264 (22 wRC+) in 138 PA while chasing 41.1% of pitches outside the zone. At some point a responsible adult would send him back to the minors for more seasoning despite the occasional 466-foot homer. Instead, he’s 4-for-40 this month including that July 10 shot. Cool, cool.

In eight seasons of doing this series for FanGraphs (plus a handful of times at Baseball Prospectus and Sports Illustrated), I can’t recall even a fringe contender so hamstrung by an inability to find reasonably productive players at offense-first positions. It’s a testament to the quality of the Royals’ pitching and the play of Bobby Witt Jr., Maikel Garcia and Vinnie Pasquantino that this team even has a shred of a chance at a playoff spot. This is the part where I normally suggest potential trade targets who could help shore up the situation; in this case the answer is “just about anyone not already on the Royals roster.” Candidates such as the White Sox’s Andrew Benintendi and the Marlins’ Jesús Sánchez look like Juan Soto and Aaron Judge next to this crowd.

Reds*

Nothing the Reds have done with either outfield corner has worked for very long or very well. Manager Terry Francona has used 10 different left fielders and eight different right fielders, with six players getting time at both. Offseason acquisition Gavin Lux has logged a team-high 34 starts in left while bouncing around to make 30 more at DH, nine at second base, and five at third. Overall, he’s hit .265/.355/.379 (106 wRC+), but his play in left has been, uh, DH-caliber (-6 FRV, -4 DRS in 278.2 innings). Austin Hays, who’s split his time about equally between left (21 starts) and DH (23 starts), has been very effective when available (.287/.323/.517, 124 wRC+) amid three separate IL stints for left calf and left hamstring strains and a left foot contusion; he and Lux have generally shared the left field and DH roles against righties.

Jake Fraley has started 39 games in right, all but one against righties; he’s hit .224/.336/.376 (100 wRC+), but has served IL stints for a left calf strain and a right shoulder sprain, the latter of which he returned from just before the All-Star break. Will Benson has split his time between left (17 starts), right (22 starts), and center (three starts), with just four from that total against lefties; he’s scuffled to a .223/.276/.427 (87 wRC+) line. Of the eight other corner outfielders Francona has tried, only Santiago Espinal has a wRC+ of at least 100 in that capacity, but that’s over just 30 PA, and his overall 63 wRC+ factors into the Reds’ placement on the third base list.

With Hays and Fraley both healthy, the Reds are in better shape than they’ve been for most of the season; the pair has spent just about two weeks together on the active roster (the second half of April). Still, between those two and the everyday play of Lux at one position or another, they’re a bit light (spoiler alert: they’ll be on the DH list as well), with a right-handed bat probably their bigger need. Unlike the Phillies (below), they’re less inclined to add payroll, but as one of the league’s younger teams, they should think in terms of multiple years. Three righties who could be available, the Rangers’ Adolis García, the Orioles’ Ramón Laureano, and the Angels’ Taylor Ward, each have another year of club control remaining; the first two will be arbitration-eligible, the last has a $6.5 million option. Red Sox lefty Wilyer Abreu, who’s got one more pre-arbitration season, offers even more upside and control but will require a greater return.

Phillies*

As noted in Wednesday’s installment, the Phillies rank 27th in the majors in total outfield WAR at 0.3, with left field the weakest of the three positions. Max Kepler spent the better part of a decade as a league-average hitter with a good enough glove to be a two-to-three-win right fielder for the Twins, but last year, he made two trips to the IL and slipped to a 93 wRC+ and 0.9 WAR. The Phillies didn’t overcommit, signing him to a one-year, $10 million deal, but his offense has continued to lag. His 90 wRC+ (.210/.307/.371) is a career low, and in his first taste of left field — the easier of the two corners — his -2 FRV is as well. Kepler’s average exit velocity is about 2 mph higher than last year, with his barrel rate improving from 6.2% to 11.4%, and his hard-hit rate from 36.6% to 44.8%, but he’s fallen 51 points short of his .412 xSLG.

Right fielder Nick Castellanos needs no introduction to readers of this annual series. Four years into a five-year, $100 million deal with the Phillies, his timing remains impeccable: he’s landed here annually. His offense isn’t completely terrible for a change; his 107 wRC+ (.273/.313/.438) is in line with his final 2022 and ’23 lines, and only three points shy of the major league average for right fielders. Alas, he’s a DH stuck in the field because the Phillies already have a better DH in Kyle Schwarber. Castellanos’ defensive metrics are on track to be his worst since 2018; after averaging -9 DRS and -12 FRV in his first three seasons in Philly, he’s at -14 DRS and -12 FRV with 66 games to go.

The Phillies have recently given a bit of playing time in left field to 25-year-old rookie Otto Kemp, an undrafted free agent who hit .313/.416/.594 at Triple-A Lehigh Valley and is at .247/.316/.337 (86 wRC+) with a 28.6% strikeout rate through 98 PA thus far in the majors. Kemp has 30-grade contact skills due to his problems with secondary stuff, and his defense at third base, his primary position in the minors, is shaky. He might work as the short half of a corner platoon, but the Phillies really need to add a quality bat. Abreu, García, and Ward each offer some firepower (not necessarily without flaws), while Benintendi and Sánchez would at least raise the production floor.

Padres

Where have you gone, Jurickson Profar? A nation turns it’s lonely eyes to you… The departure of their 2024 left fielder left a hole that the Padres have tried to fill using 10 different player. The bygone platoon of Jason Heyward and Oscar Gonzalez wasn’t up to the task. What has worked lately, particularly on the offensive side, has been using Gavin Sheets in left. The ex-White Sock has hit .265/.324/.451 (119 wRC+) in 44 games at DH, 34 in left (with all but two of them coming since May 25), and 12 at first base. Historically, the 6-foot-3, 235-pound lefty has been brutal in right field (-23 DRS, -18 FRV in 1543 innings) but has been within one run of average in the two metrics in 263 innings in left thus far. He’s been light against lefties (96 wRC+, compared to 128 against righties), so he could use a platoon partner, particularly one who can also serve as a defensive replacement; neither Brandon Lockridge nor Bryce Johnson have shown themselves to be up to the task, but this shouldn’t be the hardest problem for A.J. Preller to solve at deadline time.

Dodgers

Michael Conforto’s one-year, $17 million deal flew under the radar this past winter given the team’s fancier expenditures, but like those, the early returns aren’t too hot. The 32-year-old Conforto has hit just .184/.298/.322 (80 wRC+) with eight homers and subpar defense in left field (-3 DRS, -3 FRV). July is his first month with a wRC+ of at least 100, albeit in just 38 PA, and there’s no underlying batted ball trend suggesting notable improvement. Indeed, Conforto’s Statcast contact numbers, while still above average, are down relative to last season, and he’s lagging well behind both his .243 xBA and .421 xSLG, with his 99-point shortfall in SLG the seventh-largest in the majors.

While the Dodgers have alternatives in left, Enrique Hernández figures in the third base picture with Max Muncy sidelined, and Andy Pages — whose 205 wRC+ in 44 PA is propping up the offensive numbers here — is better used in center or right. One as-yet unexplored option would be to add rookie Dalton Rushing to the mix. The 24-year-old backstop has hit just .221/.293/.309 (73 wRC+) since debuting in mid-May, but a weekly diet of 10 PA can’t be helping his cause, and he does have 33 games of minor league experience in left.

It’s not inconceivable that the Dodgers cut bait on Conforto, particularly if they have a roster crunch. But so long as their offense is scoring a major league-high 5.33 runs per game, the matter is less urgent than their perennial need for pitching amid so many injuries.

Astros

The Astros haven’t entirely buried the Jose Altuve experiment yet, but the 35-year-old star has started just two of Houston’s last 19 games in left (and 39 overall) compared to four at designated hitter and 13 at second base. His offense (.277/.336/.465, 121 wRC+) has been fine, but his defense at the new position has been brutal (-8 DRS, -4 FRV in 325 innings), and it’s been no picnic at second either (-3 DRS, 0 FRV in 263 innings). His best position these days is probably DH, and with Yordan Alvarez sidelined due to inflammation in his right hand with no clear return date, that option is at least open.

Of the eight other Astros who have played left, the best on both sides of the ball has been Mauricio Dubón, who’s made more starts at second than left (29 versus five) while also filling in at shortstop (where he’s helped to cover for the loss of Jeremy Peña to a broken rib), third, and the other two outfield spots. He’s hitting a comparatively robust .255/.292/.415 (96 wRC+) overall and is, of course, a better defender than Altuve at either post, but he belongs at a position where he can best utilize those defensive skills. The Astro who’d merit a closer look is Zach Dezenzo, but the 6-foot-5, 220-pound rookie was recently transferred to the 60-day IL while recovering from a capsule strain in his left hand. He’s just 6-for-47 while playing left but is hitting .245/.321/.367 (96 wRC+), with a 16.4% barrel rate and a .440 xSLG offsetting his 33.9% strikeout rate. He’s eligible to return in August, so the Astros may push forward with their current jumble and hope he can help later. Still, with apologies to Cooper Hummel, Taylor Trammell, et al, this team needs a garden-variety left fielder who can hit a lick and catch the ball.

Diamondbacks

Lourdes Gurriel Jr. is now in his third season as Arizona’s left fielder. While his .251/.299/.421 slashline represents drops of 28 points of AVG, 23 points of OBP, and 14 points of SLG relative to last year — for a 10-point drop in wRC+ (from 108 to 98) — his average exit velocity, barrel rate, and hard-hit rate are virtually unchanged, and his xBA, xSLG, and xwOBA have only fallen by six or seven points. Aside from a 4.5-percentage point drop in strikeout rate, resulting in more batted balls, nothing’s really changed for him on the offensive side. He’s on this list because of a bit of bad luck here and a dip in defensive metrics there (from 3 DRS to -6, and from 1 FRV to -2), but he’ll probably remain the everyday left fielder unless the Diamondbacks clear out some outfield depth and cut salary ahead of the trade deadline — in which case he could wind up with another team on this list.

Guardians

Originally drafted and developed by the Guardians, Nolan Jones made four Top 100 Prospects lists (2019–22) before being traded to the Rockies in November 2022. Following a strong rookie season in Colorado (20 homers, 20 steals, 137 wRC+, 3.7 WAR), he battled injuries — most notably a lower back strain — and struggled in 2024, hitting just .227/.321/.320 (69 wRC+) with three homers. The Guardians reacquired him in March and have generally started him against righties either in right (45 times) or center (12 times), with nine starts against lefties spread across the three outfield positions. Unfortunately, the lefty-swinging 27-year-old’s offense hasn’t returned; he’s batting just .229/.319/.330 (87 wRC+), though as noted in the center field installment, he’s hitting the ball harder than those results suggest, with a 91.5-mph average exit velocity (3.3 mph higher than last year), an 8% barrel rate, and a 46.3% hard-hit rate. He’s cut his groundball rate, is pulling the ball more often, and has even shaved his strikeout rate to 26.5%. The 95-point gap between his .425 xSLG and his actual mark is tied for the majors’ ninth-largest.

Jones could use some better luck and a better supporting cast. Jhonkensy Noel plummeted from last year’s 118 wRC+ to zero — yes, a 0 wRC+ — with a .140/.162/.215 slashline, earning him a ticket back to Triple-A Columbus. Current platoon partner Johnathan Rodríguez has been only slightly better (.140/.189/.220, 12 wRC+). Given their 46–49 record and other trouble spots (including shortstop and center field), the Guardians may wind up selling or holding, but one trade candidate who would make sense is Laureano, who spent parts of 2023 and ’24 with the team. The Guardians did release him last May, but his 135 wRC+ for the Braves and Orioles since then suggests he’s worth another look.

Mariners

The early-April loss of starting right fielder Victor Robles to a fracture of the humeral head in his left shoulder cost the Mariners a valuable catalyst. Luke Raley took over the position, but he strained his oblique in late April, missed seven weeks, and upon returning took over the long half of a first base platoon. Leody Taveras came and went. Fortunately for the Mariners, Dominic Canzone arrived from Triple-A Tacoma and has more or less saved the day. The 27-year-old lefty, who’s closed up his stance somewhat and is swinging the bat harder, has hit a sizzling .319/.340/.564 (158 wRC+) in 97 PA. Yes, he’s chasing nearly 38% of pitches outside the zone and walking just 3.1% of the time, but he’s also barreling the ball 15.6% of the time, and both his .300 xBA and .564 xSLG are in line with his actual numbers. He’ll cool off eventually, but currently this doesn’t look like a serious problem for the Mariners, and there’s still hope that Robles can return in September to provide support.

Cardinals

Jordan Walker entered the 2023 season as a 60-FV prospect ranked no. 12 on our Top 100 list, but in parts of three seasons, he’s produced diminishing returns, including a meager .210/.267/.295 (60 wRC+) with a 33% strikeout rate in 191 PA this season. He’s been largely absent from the lineup since late May, first missing a couple of weeks due to inflammation in his left wrist, then enduring a bout of appendicitis in late June. While on his latest rehab assignment, the Cardinals are again tinkering with his swing, but so far, he’s gone just 7-for-46, albeit with five extra-base hits, at Double-A Springfield and Triple-A Memphis.

Walker’s still just 23, but it’s fair to wonder if he’ll ever live up to that lofty prospect billing, at least in St. Louis. The good news for the Cardinals is that Alec Burleson has taken over right field and absolutely raked, hitting .333/.374/.592 (158 wRC+) in 138 PA. Overall, the 26-year-old lefty has hit .293/.340/.466 (125 wRC+), though he could use a platoon partner; he has a career 52 wRC+ against southpaws.

Twins

Matt Wallner can mash. In 2023 and ’24 combined, he hit .254/.371/.515 (148 wRC+) with 27 homers in 515 PA for the Twins, even while striking out a whopping 34% of the time and spending chunks of both seasons in Triple-A. The Twins hoped that he could approximate that production across a full season, but a mid-April hamstring strain curtailed his strong start; he didn’t return until May 31 and has managed just a 91 wRC+ since. His overall line (.205/.299/.449, 107 wRC+ with 10 homers) in 41 games in right and 12 at DH rates as a disappointment. He’s getting under too many balls; his 21.8% infield fly ball rate is the second-highest of any player with at least 150 PA. Trevor Larnach, who covered right for part of Wallner’s absence and has lately been sharing the job, has hit a modest .245/.311/.415 (102 wRC+) while playing 34 games in right plus another 59 at DH and in left field. Willi Castro, the only other Twin with at least 20 PA as a right fielder, has struggled in his time there (28 games but just 15 starts) but has hit for a 124 wRC+ overall in his utility role.

Considering this is now the fifth position at which the Twins have made a Killers list, it’s clear they’ll have to solve some problems from within in order to challenge for a playoff spot. Despite his struggles, Wallner’s recent track record provides more reason for optimism than, say, Ty France at first base.