Ben Lindbergh and Meg Rowley banter about former Mets GM Billy Eppler’s suspension for fabricating injuries, then Stat Blast (15:25) about players who amassed the most WAR for their secondary, tertiary, quaternary (etc.) teams, Hall of Famers who played with their hometown teams, and uniform numbers assigned to different players with the same surname on the same team. Then they preview the 2024 Boston Red Sox (33:13) with The Boston Globe’s Alex Speier and the 2024 San Diego Padres (1:16:44) with MLB.com’s AJ Cassavell.

Audio intro: The Gagnés, “Effectively Wild Theme”
Audio interstitial 1: The Shirey Brothers, “Effectively Wild Theme”
Audio interstitial 2: Alex Ferrin, “Effectively Wild Theme”
Audio outro: Daniel Leckie, “Effectively Wild Theme”

Link to Eppler press release
Link to The Athletic on Eppler
Link to Stat Blast sheet 1
Link to Stat Blast sheet 2
Link to Stat Blast sheet 3
Link to Ryan Nelson’s Twitter
Link to Kenny Jackelen’s Twitter
Link to Red Sox offseason tracker
Link to Red Sox depth chart
Link to Alex’s Boston Globe archive
Link to Padres offseason tracker
Link to Padres depth chart
Link to AJ’s MLB.com archive
Link to Opening Day boycott

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It is not easy to skip a whole year of something and come back with the same level of performance or skill. Baseball is no different, even for the best of ballplayers. Fernando Tatis Jr. missed the entire 2022 season because of wrist injuries and a suspension for using performance enhancing drugs. While he was serving his suspension, he underwent labrum surgery to repair a recurring issue that hampered his ability to consistently stay on the field. He was fully healthy upon his return in 2023, and he remained that way for the entire season.

Yet, despite avoiding injury for the first full season of his career, in 2023 Tatis had his least productive year at the plate. His 113 wRC+ was 41 points below the mark he had recorded over his first three big league seasons. He also set career lows in average (.257), on-base percentage (.322), slugging (.449), ISO (.191) and wOBA (.332). From a data perspective, his quality of contact took a significant hit, though that isn’t all that surprising. Even after athletes return to the field, it takes time for them to regain their explosiveness following serious injuries and surgeries. Ronald Acuña Jr. is a perfect example of that. He tore his ACL in July 2021, underwent season-ending surgery, and missed Atlanta’s first 19 games of 2022. Like Tatis last year, Acuña was mostly healthy for the rest of the season but did not perform up to his standards. Then, of course, last year he won the NL MVP and became the first player ever to hit 40 home runs and steal 70 bases in a season.

Tatis will look to take a similar path, but in order to do so, he’ll have to figure out and address the root causes (mechanics, swing decisions, etc.) of this big drop off. Back in September, Ben Clemens investigated how spray angle on fly balls impacts some of the hardest hitters in the game, Tatis being one of them. One of the key conclusions of Ben’s research is that hitters who pull their fly balls at an extreme rate, such as Isaac Paredes, don’t do more with those batted balls; they just hit them much more frequently, which allows them to outproduce others on fly balls, despite not having the eye-popping power that we’d assume would be the main causal variable.

This is notable for Tatis because, over his first three seasons, he hit the ball with enough power to do damage on fly balls no matter the spray angle. That was not the case last year.

From 2019 through 2021, Tatis’ wOBA on fly balls slightly outpaced his xwOBA, while last year, he greatly underperformed his expected numbers. Much of that can be explained by his pull rate dropping from 30.5% over his first three seasons to 21.8% in 2023. However, that’s not the only variable at play here, because even when he hit straightaway fly balls in those first three years, he had a .764 wOBA. That’s well below his .894 xwOBA, but it was still the third-highest mark among all batters from 2019–21 (min. 150 fly balls). Last season, though, Tatis finished with a .291 wOBA on straightaway fly balls, significantly lower than his .653 xwOBA. Crushing balls to the deepest parts of the park was once a Tatis superpower; in 2023, it was his kryptonite.

To better understand how this happened, let’s look at how Tatis fared in different areas of the strike zone. By breaking down his performance in different zones, we’ll get a better idea of any holes that may have developed in his swing. For all his woes last year, Tatis continued to rake against left-handed pitching (152 wRC+), so I’m going to focus on his splits vs. righties, against whom he had a career low 101 wRC+. The table below shows how Tatis performed against pitches from righties in each third of the zone, first in 2021 and then in 2023.

There are drops across the board here, but my goodness, what the heck happened on the outer third? In 2021, Tatis ranked second in right-on-right wOBA on outer third pitches. This year, if you were a righty who could locate on the outer third, Tatis would do the work for you.

What’s the deal? Making contact wasn’t the problem, because he actually whiffed less often against the outer third last year than he did in 2021. The real issue was his quality of contact. On his 67 batted balls against pitches from righties on the outer third in 2021, his xwOBACON was .634. In 2023, it was .305. Ooof.

A change in swing path is typically to blame when a player goes from destroying the outer third to hardly covering it at all. Let’s look at the video to figure out what mechanical flaws altered his swing path. Here are some swings from 2021 against outer third pitches from righties.

Here is a standard heater away with a pretty neutral body angle (sorry Keegan Thompson):

This one is a low and away breaking ball with a pretty aggressive body adjustment to get the barrel under the ball:

And lastly, here is a high heater that needed an upright body adjustment:

Each of these three swings shows how Tatis adjusted his body in different ways to get to his barrel to outer third pitches. The swings are reciprocal, athletic, and vicious. His stability with the ground is consistent no matter the posture of his upper body. Now let’s look at three swings on similar pitches from 2023, starting with another standard middle-away heater:

Here is a swing on a low breaking ball with a body adjustment where Tatis couldn’t quite create the same angle as he did in 2021:

Then here is a can of corn fly ball to center on an up and away heater where Tatis caught it off the end of the barrel:

OK, now for some comparison. Off the rip, it’s clear that Tatis’ stride is working in a different direction. It’s more neutral now than it used to be. Instead of working from a neutral stance into a closed stride, he’s working from an open stance into a neutral stride. The starkest comparison is looking at how he handled Thompson’s heater in 2021 versus the 2023 one we saw from Cristian Javier. Against Javier, it was the exact kind of pitch you’d expect Tatis to drill into the opposite field gap, but his legs didn’t create enough space for him to get his barrel moving in the optimal direction. Instead of a laser opposite field homer, it was a measly liner to left for an easy out.

In 2021, Tatis had a more stable base, which allowed him to create a more drastic angle with his upper body against the low breaking ball. That made the difference between his line drive in the gap from 2021 and last year’s line drive to the shortstop. On both of the high pitches, he had the tall posture he needed to get on plane, but in 2023, he couldn’t get his bat on the proper horizontal angle to make flush contact, causing him to hit the ball off the end of the bat instead of the barrel.

As I always say, we’re looking for reciprocal movements. If he’s still kicking back aggressively but doesn’t have the movement beforehand to make the kick back smooth, then he’s creating asymmetrical movements. The closed stride and smooth kick back was his recipe for success in 2021. The logic here is that when he strides closed, he has a more stable connection to the ground, leading to better positions to get his barrel on plane.

He did not do that last year, and as a result, he created less space for his upper body to cover the outer third effectively, which sapped his production on fly balls. Because he was coming back from surgery, it’s possible that he wasn’t comfortable making the same movements he had in the past, though it’s hard to believe that would be the only reason for losing his mechanics. After all, his surgery was on his shoulder, and this is a lower body problem. That said, even if he knew what was wrong, his shoulder could have limited the amount of extra swings he could take to fix it during the season.

Now that he is healthy, he should be able to do the drills and cage work necessary to correct his mechanics and return to his previous rotational patterns.

When Carl Pavano threw the first official pitch at the brand new Target Field on April 12, 2010, there was no Target logo on the mound. Mind you, there were Target logos aplenty all around the ballpark — on the wall behind home plate, just below the press box, up above the bleachers in right and center field, on the signs the fans brought and the hats they wore, and on the video boards on the façade of the upper deck, which often displayed rows of alternating baseballs and Target logos, hundreds of them wrapping around the entire stadium — just not on the pitcher’s mound. Later that year, the interlocking T and C of the Twins logo began appearing in the dirt behind the rubber; the Target logo didn’t start gracing the mound until 2016.

Still, in the early years of 2016 and 2017, the mound was often completely targetless. Even today, there are games where there’s no logo whatsoever — and not just nationally televised games, when the advertising rights can change. Sometimes it’s just the pitcher all alone up there (aside from the rubber, the cleat cleaner, and a couple rosin bags):

I don’t have any good guesses that explain the logo’s occasional absence, but I have so, so many bad guesses. Maybe the grounds crew is hiding the target somewhere else on the field and we’re supposed to be looking for it. Maybe Target leases the space on a per-game basis, and sometimes whoever is in charge of delivering that day’s check gets lost during the half-mile walk from Target Plaza Commons headquarters to Target Field. Maybe — and hear me out on this one — maybe the grounds crew just gets busy sometimes. I don’t know why it’s not always there, but if it’s supposed to be there every game, I hope this paragraph doesn’t get anybody in trouble. Read the rest of this entry »

Few positions on the Brewers depth chart are more set than catcher. William Contreras, whom they acquired before last season, was their best player in 2023. He led Milwaukee in hitting and finished third on the team in plate appearances despite shouldering a full-time catching load, which normally limits playing time. Most impressively, he delivered a sensational defensive performance a year after he was one of the worst receivers in baseball. On a team that struggled to generate offense, Contreras was a rare and brightly shining exception.

Naturally, the Brewers just signed the best free agent catcher on the market, give or take DH Mitch Garver. That’d be Gary Sánchez, who is joining the team on a one-year, $7 million contract, as Jon Heyman reported. It sounds bizarre – and it may well be bizarre. But there’s a method to Milwaukee’s madness, so let’s try to figure it out together.

There’s one obvious thing going for the Brewers: They really needed a second catcher. Before they signed Sánchez, the plan was to use Eric Haase, he of the 42 wRC+ in 2023, as their second backstop. That plan was not great, to put it succinctly. Haase probably isn’t that bad offensively, but he’s also not particularly good behind the plate. In his best years in Detroit – he hit a career-high 22 home runs in 2021 and topped out at 1.3 WAR in 351 plate appearances the following season – he wasn’t used as a pure catcher, dabbling in the outfield and at DH and racking up meaningfully negative framing numbers when he did don the tools of ignorance.
Read the rest of this entry »

The best pitch in baseball is a well-located four-seam fastball. It is the rhythm guitar of pitching, the rock upon which the church is built. To establish the fastball first is fundamental; to pitch any other way is backwards.

Maybe you don’t need it at all.

In the late 20th century, rock and roll evolved into different popular forms that either de-emphasized the role of the guitar or eliminated it altogether. Some artists went forward and embraced electronic instruments; others went back in time and rediscovered the piano. Of the 603 pitchers who threw at least 250 pitches last year, 49 didn’t throw a single four-seamer. Many of them were quite successful. The anti-four-seamer crowd includes top relievers like Josh Hader, Camilo Doval, and José Alvarado, as well as elite starters like Corbin Burnes and Framber Valdez. Read the rest of this entry »

With the additions of Shohei Ohtani and Yoshinobu Yamamoto on deals lasting 10 and 12 years, respectively, the Dodgers are entering a new era when it comes to their headlining superstars — not to take anything away from Mookie Betts and Freddie Freeman, both of whom remain at or near the top of their respective games. On Monday, we learned that the next stage of Dodger baseball will also include another familiar superstar: The New York Post’s Joel Sherman and Jon Heyman reported that free agent Clayton Kershaw will return to the only team for which he’s ever pitched.

The exact terms of the deal — which is pending a physical on Thursday — have yet to emerge at this writing, but USA Today‘s Bob Nightengale reported that the deal is a “one-year, incentive-laden contract,” while The Athletic’s Andy McCullough added that the contract includes a player option for 2025. If exercised, that would allow Kershaw to join Ohtani — who won’t pitch in 2024 after undergoing reconstructive surgery on his UCL this past September — in the Dodgers’ rotation.

Player options tend to carry advantages when it comes to Competitive Balance Tax accounting, a significant concern for the Dodgers, who rank second in payroll (both actual and CBT-based) only to the Mets and are nearly $12 million over the fourth-tier tax threshold of $297 million even before adding Kershaw’s salary. For example, Justin Turner’s two-year, $21.7 million deal with the Red Sox last year called for a base salary of $8.3 million for 2023, then a $13.4 million option and $6.7 million buyout. By opting out, Turner made $15 million on a deal whose average annual value was just $10.85 million. Read the rest of this entry »

“Jose Altuve will be an Astro for life,” read the club’s announcement on Tuesday afternoon. Under different circumstances, that could be construed as a threat. But Altuve will be well-remunerated for the remainder of his time in Houston: His new contract extension will run for five years, starting in 2025, and pay him a guaranteed $125 million.

This is the third long-term contract Altuve has signed with the Astros, the club that signed him as a 16-year-old out of Venezuela all the way back in 2007. By the time it’s over, he will have spent some 23 seasons in the organization, 19 of them in the major leagues. The phrasing of the announcement is a little more concrete than any prediction about 2029 ought to be. It’s possible that Altuve will continue playing once his deal expires. But when it does, he’ll be seven months short of his 40th birthday. That seems like as good a time as any to plan on wrapping things up. Read the rest of this entry »

On Monday night, just four days after the Brewers traded perennial Cy Young candidate Corbin Burnes to the Orioles for a package of promising young players and a competitive balance draft pick, Milwaukee signed a pitcher with an even better FIP to take his spot at the front of their rotation.

Sorry, that was misleading. Let’s try this again: After spending five years in Kansas City and two years in San Francisco, right-handed pitcher Jakob Junis has agreed to a one-year, $7 million deal with the Milwaukee Brewers. Kiley McDaniel reported the signing, which according to Ken Rosenthal includes a $4 million salary in 2024 along with a $3 million buyout on a mutual option for the 2025 season. While the Giants moved Junis to the bullpen in 2023, the 31-year-old is expected to join Milwaukee’s starting rotation. After the team non-tendered the injured Brandon Woodruff and traded Burnes, the rotation was looking particularly threadbare, relying on Freddy Peralta and a series of other pitchers with question marks surrounding their health, stuff, age, or some combination of the three.

Peralta, who was worth 3.0 WAR over 30 starts and 165.2 innings in 2023, had excellent stretches last season, including taking home NL Pitcher of the Month honors in August. Still, his 3.86 ERA, 3.85 FIP, and 1.41 HR/9 were all the worst marks he’d put up since the shortened 2020 season. Wade Miley, back on a one-year deal, has been fantastic over the last three seasons, but the Brewers will need him to continue his contact suppression sorcery at age 37. Colin Rea put up 0.8 WAR in 2023; the Brewers are hoping he can post back-to-back seasons with a sub-5.00 ERA for the first time since 2015 and 2016. DL Hall, who came over in the Burnes trade, is a truly exciting young pitcher, but he’s also dealt with injuries over the last two years and ended up in Baltimore’s bullpen in 2023. After a shoulder injury, Aaron Ashby pitched just seven minor league innings last year, while Joe Ross, coming off his second Tommy John surgery, threw 14 minor league innings and hasn’t pitched in the majors since 2021. Read the rest of this entry »

The Pirates have an above-average farm system that includes a number of high-ceiling pitching prospects. Paul Skenes is the most notable — the 21-year-old right-hander was selected first overall in last summer’s draft — but he’s far from the only electric arm in Pittsburgh’s pipeline. As many as half a dozen hurlers will populate the first 10 names when our Pirates top prospects list comes out this spring. Whether any of them will help propel the Bucs to playoff contention remains to be seen, but in terms of potential, the group presents a tantalizing mix of talent.

I asked Pirates General Manager Ben Cherington about a few of those promising young arms during November’s GM Meetings.

———

David Laurila: How happy are you with your pitching pipeline?

Ben Cherington: “We’re excited about it. We also know that pitching development never stops and there are things ahead of all those guys. Part of the reason we’re excited is the talent, but the truth is, no matter how well you do in pitching development there is usually attrition of some kind. You need some volume to make it work, and we think we’re starting to develop some volume. So again, we’re excited. Every one of those guys has targets that we’re working on this offseason, and we’re anxious to see where they’re at come spring training.”

Laurila: Has your pitching program evolved in the last few years?

Cherington: “We believe so. We’ve got some signal on that. It’s improving in some areas, and in other areas we still need to be better. We can’t ever be satisfied with it. But we’ve made some strides with things like breaking ball pitch design, pitch usage, sequencing in the minor leagues. We’ve made some strides with deployment, getting better at identifying what skills fit in different roles and getting guys into those roles. At the same time, there are more things to get better at. All of it is important.”

Laurila: Which of your pitching prospects most stands out for his stuff? I’m thinking pitch metrics. Read the rest of this entry »

Ben Lindbergh and Meg Rowley introduce the 12th annual Effectively Wild season preview series, then banter about the Royals extending Bobby Witt Jr., the Dodgers reuniting with Clayton Kershaw (and Ryan Brasier), the Red Sox (sort of) reuniting with Theo Epstein, and the latest hitter who’s converting to pitching. Then they preview the 2024 Miami Marlins (33:33) with Fish on First’s Kevin Barral and the 2024 New York Mets (1:09:12) with The Athletic’s Tim Britton.

Audio intro: Nate Emerson, “Effectively Wild Theme”
Audio interstitial 1: Nate Emerson, “Effectively Wild Theme”
Audio interstitial 2: Benny and a Million Shetland Ponies, “Effectively Wild Theme”
Audio outro: Indoor Recess, “On-Field Mics”

Link to preview series wiki
Link to FG depth charts standings
Link to Dan S. on Witt
Link to MLBTR on Witt
Link to Baumann on Peralta
Link to MLBTR on Kershaw
Link to FG on Brasier
Link to info on Brasier’s cutter
Link to MLBTR on Peters
Link to Ben on Taylor Swift
Link to Caribbean Series wiki
Link to Marlins offseason tracker
Link to Marlins depth chart
Link to team SP projections
Link to team RP projections
Link to Fish on First
Link to Fish on First podcast
Link to Kevin’s Fish on First archive
Link to Mets offseason tracker
Link to Mets depth chart
Link to Mauricio ACL news
Link to 2023 framing leaders
Link to “transitory” comment
Link to Mets fan survey
Link to Tim’s The Athletic archive
Link to MLBTR on Altuve

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