Catcher valuation, like Maria, is a difficult problem to solve. The San Diego Padres took a stab at it on Sunday night, trading for Seattle backstop Austin Nola in a seven-player swap. Jake Mailhot took a look at the calculus behind that decision, which completely revamped San Diego’s catching depth chart while also sending a big-name prospect to Seattle, which Eric Longenhagen covered.

But that wasn’t the entirety of the deal — not by a long-shot. A.J. Preller tacked on a swap of relievers in much the same way you or I might grab a pint of ice cream at the grocery store — “Well, since I’m already here, I might as well get this.” Relievers Austin Adams and Dan Altavilla are headed to San Diego as part of the Nola deal as well.

You’ve probably heard Austin Adams’ name before. It might even be the right Austin Adams — there’s another righty reliever by the same name in the Twins organization. You might not know just how excellent he is though. In a short 32-inning stint in the big leagues last year, he blew the competition away, striking out 40% of his opponents. He also walked 12%, which isn’t great, and had surgery to repair a torn ACL last September, so it’s not like he’s peak Craig Kimbrel without the name recognition. But he’s seriously great.

Adams sports the classic origin story for a good reliever: the Nationals traded him away for pitching help. In 2019 (!), they sent Adams to the Mariners for minor leaguer Nick Wells. Roughly a week later, the Mariners called him up, and after a debut featuring all three true outcomes — three strikeouts, a walk, and a home run in five batters — he rounded into being their best bullpen weapon. Read the rest of this entry »

Sunday’s seven-player deal between the Mariners and Padres was the deadline’s biggest trade so far, impacting this year’s playoff race and both teams’ roster construction for years to come. While the most immediate effects will be seen in San Diego, the Mariners continued to collect talented, young players with their spyglass fixed on a long-term rebuild by acquiring Taylor Trammell, Ty France, Andres Muñoz and Luis Torrens (covered here) in a trade centered around catcher Austin Nola.

The headline prospect of the package is Trammell, a 23-year-old 50 FV prospect (meaning I expect him to be a an everyday player who generates around 2 to 2.5 annual WAR — commensurate with a good everyday player — over the course of his pre-free agency seasons) who was with San Diego’s big league club throughout spring training, then played during summer camp intrasquads, and has since been at the Padres’ alternate training site at the University of San Diego. Trammell spent all of 2019 at Double-A, albeit with two different orgs because he was also part of last year’s massive, three-team Trevor Bauer deadline deal that sent Trammell from Cincinnati to San Diego; Seattle is his third organization in 13 months.

Trammell is ranked toward the top of the 50 FV tier of prospects, 68th in all of baseball, because a) he’s fairly close to the big leagues and b) he has a few core attributes that I consider especially important. Chiefly, Trammell has a good idea of the strike zone, and he’s a good athlete who has good on-field makeup/competitiveness. I know the latter two sound hokey and perhaps antiquated, but they do drive some of my thinking related to prospect floor or certainty because, anecdotally, I think good athletes who try hard tend to turn into good players.

A career .270/.363/.406 hitter, Trammell has the ball/strike recognition (12% career walk rate) and contact potential to one day be a leadoff man. I say contact potential because I don’t think his bat is quite as polished as it appeared to be at the lower levels. He’s a short-levered hitter who can turn on pitches on the inner third of the plate, and he grinds out long, tough at-bats, but while Trammell has some all-fields spray ability, he struggled with velocity up and away from him during the spring and summer intrasquads. To my eye, he has done some tinkering with his hitting footwork, which may have been an attempt to tease out more in-game power, though I’m skeptical that will ever be part of the profile. I think a contact/on base-oriented approach fits best with Trammell’s swing and physical ability, though admittedly punting on his power potential (those Futures Game rockets he hit a few years ago were highly unusual) caps his ceiling. It’s tough to be an impact player without thump, which is part of why I have a solid regular FV on Trammell rather than a big, star-level one. Read the rest of this entry »

The flurry of deals made by the San Diego Padres on Sunday culminated with a massive trade with the Seattle Mariners. The headlining player headed to Southern California is catcher Austin Nola, along with two relievers, Austin Adams and Dan Altavilla. Ben Clemens will address the newest additions to the Padres bullpen and Eric Longenhagen will have the analysis of the prospect/recently-prospect haul the Mariners received from the Padres — Taylor Trammell, Andres Muñoz, and Ty France — a little later this morning. The fourth player headed to the Northwest, Luis Torrens, is likely to take Nola’s place on the Mariners roster as their starting catcher.

With the Padres acquiring Jason Castro from the Angels earlier in the day, the addition of Nola completes an overhaul of the Padres catching corps. As a group, the Padres catchers had put up a collective .146/.228/.291 slash line, good for a 45 wRC+ and -0.3 WAR. They weren’t the worst hitting group of backstops in the majors this year, but it was a clear need for the Padres, who have their eyes on a deep postseason run.

Castro is a fine offensive upgrade in his own right but the easy answer to the Padres problem was to simply add the best hitting catcher in the majors in 2020. That’s exactly what they’ve done in adding Nola. His .380 wOBA ekes out J.T. Realmuto by just a single point, his 145 wRC+ is six points higher than the star Phillies backstop, and they’re tied with 1.2 WAR apiece. Read the rest of this entry »

It had been hours — hours! — since A.J. Preller and the San Diego Padres made a trade, so they were more than due. To fix that nearly unthinkable drought, they stayed within the state of California — Jason Castro is headed from the Angels to the Padres:

Sources: The Padres are trading for catcher Jason Castro, sending righty reliever Gerardo Reyes to the Angels in return. Deal is pending medicals.

— AJ Cassavell (@AJCassavell) August 30, 2020

Catcher has been the main weak spot for San Diego this year. Austin Hedges is hitting .167/.262/.352, and that’s actually better than last year’s batting line. He needs to be more or less perfect behind the plate to make up for that, and he’s fallen short of that this year. The depth chart behind him looks even worse; Francisco Mejía combines the defense of someone the Padres have been hiding in left field to avoid his catching butchery with a line that would make Hedges blush; .079/.146/.184. He’s also on the Injured List with a thumb injury. Third-stringer Luis Torrens has been acceptable in 13 plate appearances, but he’s hardly a solid stopgap.

Enter Castro, whose .192/.323/.385 slash line this year, good for a 98 wRC+, would be the best offensive contribution the Padres have received from a catcher in quite some time. That’s not a good thing, per se — he’s striking out 37.1% of the time with a gross 15% swinging strike rate — but as the saying goes, any port in a storm. Perhaps no position player in baseball this side of Jeff Mathis projects to be worse than Hedges on offense.

Castro’s offensive production, while it would be an upgrade, isn’t the reason teams value his services. He’s made a career out of hitting enough to be playable while saving runs behind the plate, a sort of halfway version of Hedges, who has been one of the worst hitters in baseball his entire career but arguably the game’s best defensive catcher. Read the rest of this entry »

The San Diego Padres have added another bat to 2020’s second-best lineup so far, acquiring first baseman Mitch Moreland from the Boston Red Sox for two prospects, third baseman Hudson Potts and center fielder Jeisson Rosario. Moreland will almost certainly slot in as the team’s full-time designated hitter, occasionally spelling first baseman Eric Hosmer.

If during a word association game prior to the season, you had said “stopgap first baseman,” I almost certainly would have answered with “Mitch Moreland.” Never amazing but also rarely terrible, Moreland has been a fixture as the long-term/short-term first baseman for Boston the last four seasons. Peaking at 2.2 WAR for the 2015 Rangers, he’s put up between 0.7 and 1.0 WAR in six other seasons, building a handy little pillow fort between average and replacement level.

This season, on the other hand, has been something better. Moreland has already hit the 1 WAR milestone in just 22 games thanks to a .328/.430/.746, 203 wRC+ line. No, he’s not suddenly channeling the shade of Ted Williams, but he’s legitimately hitting for more power than he typically does. By Statcast’s barrels per batted ball event, Moreland ranks second in baseball behind only Miguel Sanó. It’s not that he’s actually hitting the ball that much harder, but he’s gotten more loft in his swing; Moreland’s 20-degree average launch angle against fastballs and 19-degree average launch angle against breaking pitches are career highs, both nearly double his marks from 2019.

And while Moreland is unlikely to ever finish among the league leaders in home runs, he has become quite good at harvesting pitchers’ regrets. Statcast defines “meatballs” as middle-middle pitches; an average hitter swings at about 75% of those. Moreland’s rate is at 87.3% in 2019 and 2020 combined, meaning he’s only half as likely as the typical player to leave his bat on his shoulder for those pitches. Here’s his radial chart against middle-middle over those two seasons:

Read the rest of this entry »

The San Diego Padres came into 2020 with one of the best late-inning setups in baseball. Their plan was simple: offseason acquisitions Drew Pomeranz and Emilio Pagán would handle high-leverage situations in the middle innings before passing the baton to Kirby Yates, one of the most dominant relievers in the game. That plan hasn’t worked out this year, largely because Yates will miss the rest of the season after surgery to remove bone chips from his elbow. On Saturday, however, they made a move to replenish their planned area of strength, acquiring Trevor Rosenthal in a trade with the Royals.

Nationals fans might wonder whether acquiring Rosenthal is supposed to be a good thing. He was, no doubt, abysmal for them last year — he racked up a 34.9% walk rate over 12 games before getting the heave-ho. A slightly longer stint with the Tigers ended the same way — striking out 28.6% of the batters you face is good, but not when you’re walking 26.8% of them as well. The Royals signed him as a reclamation project, nothing more — a minor league deal that could escalate to as much as $4.25 million based on incentive bonuses.

Consider him reclaimed. In 13.2 innings this year, he’s been effective, striking out 37.5% of his opponents en route to a 3.29 ERA that, while still short of his peak, represents a huge improvement from last year’s disaster. It’s not all daisies and lollipops, even at surface level — he’s walked 12.5% of opposing batters and given up two home runs. Mid-three ERA relievers don’t grow on trees, though, and San Diego was intent on getting one.

In acquiring Rosenthal, the Padres are making a bet that they can fix him, because despite his acceptable results this year, there are worrisome underlying signs. As Johnny Asel pointed out, Rosenthal might resemble his St. Louis form superficially, but the way he’s doing it has changed completely. He’s flooding the center of the strike zone and daring batters to hit it, which explains the better walk rate but also the hard contact.

At his peak, Rosenthal was that most cherished baseball stereotype: effectively wild. He lived on the edges of the strike zone and just outside it. That ballooned his walk rate, but it also suppressed home runs; squaring up Rosenthal’s explosive fastball and where’d-it-go changeup was simply beyond most batters when he didn’t leave them hanging over the plate.

To wit, when batters swing at pitches he leaves over the heart of the plate, per Baseball Savant’s definitions, they’ve hit nine home runs in 774 swings. When they swing at pitches on the edges of the plate, they’ve hit two in 816 swings. That’s not wildly different from how major league pitchers work in general — Rosenthal suppresses home runs in a similar ratio in both places — but for a pitcher who will always allow some traffic on the bases due to his walk rate, home runs are an anathema. Read the rest of this entry »

At this point in his career, Eric Hosmer is a known quantity. A few good offensive seasons during his 10 years in the majors have been marred by just as many poor campaigns at the plate. Collectively, he’s been 7% better than league average as a hitter during his career. And because he’s been in the league so long, it’s pretty clear why he’s been unable to produce consistently. Among the more than 500 players who have qualified for the batting title since Hosmer debuted in 2011, his groundball rate is 20th at 54.3%.

With more than half of his batted balls getting pounded into the ground, Hosmer’s success has been dangerously tied to his BABIP. This table of batted ball stats from 2015 onwards tells most of the story:

Hosmer has never had trouble making solid contact. It’s just that more often than not, that hard contact is made on groundballs. That tendency to put the ball on the ground has only gotten worse since joining the Padres in 2018, and it’s come with an elevated strikeout rate as well. Since signing his eight-year deal, he’s been 7% below league average at the plate and has accumulated -0.5 WAR over two seasons. His contract and lack of performance has become a big problem for the Padres.

Things might be looking up for Hosmer in 2020, however. He started off the year with five hits in three games including two doubles and a home run. A stomach issue sent him to the Injured List for 10 days and he struggled in his first few games back, his body likely still recovering from losing some weight while he was sidelined. But from August 13-17, he put together a five-game hitting streak that included three home runs. Because of his missed time earlier in the season, he’s only accumulated 56 plate appearances, but there have already been some significant changes to his approach that deserve investigation.

Here’s the same table as above, this time with 2020 included.

Hosmer’s batted ball profile looks nearly unrecognizable from his previous career norms. His groundball rate has dropped to a career low, and his fly ball rate is among the league leaders at 46.5%. This spring, Hosmer made some comments recognizing the deficiencies of his approach and acknowledged the changes he needed to make:

“I’ve got to get the ball in the air a little more. I’ve got to drive the ball a little more. I hit the ball really hard. It just goes on the ground.”

This isn’t the first time Hosmer has expressed a desire to hit the ball in the air more often. He made similar comments back in 2018. But this is the first time that sentiment has led to an actual change in approach.

When a batter makes significant changes to his batted ball profile, the simple assumption is that he’s made a swing change, as so many other batters have recently. That doesn’t seem to be the case with Hosmer. Here’s an example swing from 2019:

And here’s a swing from 2020:

Hosmer still has the long, loopy swing that he’s always had. The leg kick is still present as a timing mechanism. If he made any mechanical changes to his swing, they’re likely small tweaks rather than the big, sweeping changes we’ve seen from batters like Justin Turner. In The Athletic interview linked above, Hosmer mentions maintaining balance on his back leg as a way to prevent him from swinging down on the ball. That minor mechanical adjustment is certainly present in his 2020 swing shown above but it probably isn’t the main source of his new batted ball profile; instead, a change to his swing profile is likely what’s driving the change in batted ball outcomes. Here’s Hosmer’s swing rate grouped by pitch type during his career.

He’s simply stopped swinging at breaking balls and offspeed pitches and has focused his approach on attacking fastballs. Over his career, his groundball rate against breaking balls is 57.7% and it’s even higher against offspeed pitches (60.6%). By reducing the number of swings on pitches that produce his highest rates of groundball contact, he’s bound to reduce his overall groundball rate. His historic groundball rate against fastballs has been high as well (53.2%), but this year he’s elevating the hard stuff he sees. His average launch angle against fastballs has increased by 10 degrees this year and his average launch angle against breaking balls has increased by 20 degrees!

There have been periods earlier in his career where his rolling average launch angle has been this high, but not since joining the Padres. (It should be noted that his average launch angle was higher (17.2 degress) through August 16 but he’s hit a bunch of groundballs in the days since — such is the nature of these early season stats.)

Hosmer hasn’t just increased his launch angle, he’s also changed his batted ball distribution. He’s had a fairly even distribution of batted balls throughout his career, with a 34.2% pull rate balanced by hitting to the opposite field 28.7% of the time. This year, his pull rate is up to 44.2%, easily a career high. And because he’s elevating the ball more often while still maintaining his hard hit rate, his barrel rate is also at a career high 12.2%.

Changing his swing profile has also helped him reduce his strikeout rate to where it was in Kansas City. His chase rate has dropped by four points and his contact rate has increased by more than 12 points, up to a career high 85.7%. Hosmer has a new plan at the plate. When he’s ahead in the count, he’s swinging at non-fastballs just 28.6% of the time, nearly 25 points lower than last year. He’s focused on attacking fastballs and pitches he can handle. And when he makes contact, he’s pulling the ball more often and elevating.

This new approach at the plate has resulted in a reinvention for Eric Hosmer. Nearly every single change he’s made has helped him produce better results at the plate. We’re getting close to the point where these underlying statistics become statistically reliable. It certainly seems like Hosmer has finally figured out the adjustments he needed to make to regain his productivity at the plate.

Thanks are due to Eric Longenhagen for sharing his notes on Hosmer’s adjustments.

If you follow baseball, you might be aware of the minor scandal “caused” by Fernando Tatis Jr. on Monday night. Without the usual tens of thousands of fans in attendance to serve as direct witnesses, Tatis brazenly and maliciously hit a grand slam of Texas Rangers pitcher Juan Nicasio on a 3-0 count, while fully aware that his team had a seven-run lead. Ian Gibaut then came in and threw behind Manny Machado, sending an important message that acts of baseball will not be tolerated! Despite Chris Woodward’s efforts to explain Tatis’ violations of baseball’s sanctified unwritten rules, MLB had the temerity to give suspensions to Woodward and Gibaut. Rob Manfred may as well have thrown mom’s apple pie off the window sill.

More of this, please.

Baseball’s unwritten rules are a dreary mess, a veteran-imposed caste system of arbitrary rules and penalties that attempt to impose conformity, often on players of color, without the slightest benefit to how the game is played on the field or how the product comes across to viewers. And in addition to being tone-deaf and nonsensical, they’re rarely consistently enforced! I certainly don’t remember Woodward issuing a heartfelt apology to the Royals last year when his team hit two home runs in the ninth against Chris Owings, dragooned into mop-up duty in a long-lost game. At least Nicasio is an actual major league pitcher.

But enough about that fussiness — let’s get back to the baseball-related awesomeness of Tatis.

Tatis isn’t going to be the highest-paid Padre for a very long time thanks to the presence of Machado, but if the next decade of San Diego baseball is successful, it will be defined by players like the young shortstop, not to mention Chris Paddack and MacKenzie Gore. The resurgent, seemingly fly ballism-converted Eric Hosmer is in his decline phase and Machado, while a special player, didn’t grow up in the organization. Read the rest of this entry »

Earlier this week, Jay Jaffe detailed Fernando Tatis Jr.’s ascent to superstardom. The 21-year-old shortstop is one of the most exciting players in baseball and is among the league leaders in nearly every meaningful offensive and defensive statistic. But he’s not the only player providing elite production from an up-the-middle position for the Padres. If you filter the position player WAR leaderboards to include players 23-years-old and younger, you’ll find one of Tatis’ teammates just a couple of spots behind him: Trent Grisham.

Among players 23-years-old and younger, Grisham is tied with Ronald Acuña Jr. and Juan Soto at 0.6 WAR. He doesn’t have the gaudy slash line Tatis has posted this year, but his overall offensive contribution has been 39% better than league average, just a couple points behind Acuña’s 141 wRC+. In his 51-game debut with the Brewers last year, Grisham posted a 92 wRC+. This improvement of nearly 50 points has been driven by an eight point jump in walk rate and an outburst of power.

Grisham’s plate discipline has always been a strength. While he was a Brewers prospect, he posted an excellent 15.8% walk rate, though that discerning eye didn’t always translate into low strikeout rates. Eric Longenhagen and Kiley McDaniel described his approach like this in his 2019 prospect profile:

The low batting averages he has posted have been due less to his inability to put the bat on the ball and more to an approach that is passive in excess. Grisham watches a lot of driveable pitches go by. That approach is also part of why he’s never run a season walk rate beneath 14%, and Grisham’s ability to reach base is part of why he’s still such an interesting prospect.

In 2019, it seemed like he had gotten his plate approach figured out, posting a 16.3% strikeout rate between Double-A and Triple-A. But the strikeouts returned in force after he was called up to the majors in August, jumping up to 26.2%, and his walk rate dropped to 10.9%. That elevated strikeout rate has followed him to San Diego but his walk rate has bounced back to 17.9%. Read the rest of this entry »

Fernando Tatis Jr. is the superstar baseball needs in 2020. Countering the multitude of anxieties that come with enjoying baseball amid the coronavirus pandemic, his towering home runs, bat flips, and celebratory dancing are as pure a distillation of the joy and excitement as the game can provide right now. Limited to 84 games in his rookie season due to injuries, the buoyant 21-year-old shortstop is off to a red-hot start, propelling an engaging Padres team to a 10-7 record while lighting up social media along the way. Unless you’re an opposing pitcher, it’s nearly impossible not to break out in a smile watching Tatis play.

On Sunday, Tatis crossed paths with a hanging curveball from the Diamondbacks’ Madison Bumgarner. Left fielder David Peralta couldn’t even be bothered to turn around to view the damage:

Admittedly, it wasn’t Bumgarner’s day — he served up a career-high four home runs in just two innings before departing due to back spasms — but it ran Tatis’ streak of consecutive games with a homer to four. The streak ended on Monday night at the hands of the Dodgers, who held him to 1-for-4 with an infield single, but the Padres’ 2-1 victory pulled them within 1 1/2 games of the NL West lead. Read the rest of this entry »