A week ago, as Sean Manaea and Frankie Montas continued their rehab assignments, reporters and fans wondered how the two hurlers — both of whom suffered injuries before the calendar flipped to March — would fit into a rotation that has been one of the majors’ best thus far. “Usually it plays itself out,” responded Mets manager Carlos Mendoza when asked about it. “We still are at least two weeks away from making those decisions and I’m hoping that by the time we get there it is going to be a difficult decision. That means everyone’s healthy. That means everybody continues to throw the ball well and we have some good problems.”

While the Mets still share the NL’s best record (45-28) thanks to the work of that rotation — which has been unusually durable since the start of the regular season — their decision regarding that pair has become more complicated. In rapid succession, both Kodai Senga and Tylor Megill have landed on the injured list, the former with a hamstring strain and the latter with an elbow sprain. Each is likely to miss at least a month, and so far, neither Manaea nor Montas has shown he’s ready.

On Thursday at Citi Field, Senga absolutely carved up the Nationals, holding them to one hit — a first-inning single by James Wood — and one walk while striking out five. With one out in the sixth, he ran to cover first base after inducing CJ Abrams to hit a sharp grounder to Pete Alonso, whose throw to the pitcher was high. Senga leapt in the air to catch the ball, then extended his right leg far enough for his toe to touch the corner of the bag in time to beat Abrams. It was an impressive, acrobatic play, but the pitcher immediately grabbed his right hamstring upon landing, then tumbled to the ground.

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In 2023, Mets left-hander David Peterson struck out 128 batters in 111 innings. Peterson’s strikeout rate that year, 26.0%, was 27th in the league out of 127 pitchers who threw 100 or more innings. He was tied with Zac Gallen, not far behind Luis Castillo, Gerrit Cole, and Zack Wheeler.

The next year, Peterson’s strikeout rate dropped by more than six points, to 19.8%, but he shaved three-quarters of a run off his FIP, and more than two runs off his ERA. This year, Peterson is striking out 21.5% of opponents, and after Wednesday night’s complete-game shutout of the Nationals, his ERA is 2.49, which is 14th among qualified starters.

But I thought striking batters out was good! How did Peterson turn into this unhittable monster while running a lower strikeout rate than Shane Baz? Read the rest of this entry »

It’s been a frustrating season for Mark Vientos. After two years of trying to stick with the Mets, he broke out by hitting 27 homers in 111 games last season, and handled third base well enough to look as though he’d locked down a regular job. Yet this year, he’s regressed on both sides of the ball, and on Tuesday night in Los Angeles, he added injury to insult when he strained his right hamstring. The silver lining is that the 25-year-old slugger will get a chance for a reset once he’s healthy, and in his absence, the Mets have an opportunity to sort through their talented but still largely unproven assortment of young infielders.

Vientos’ injury occurred in the top of the 10th inning in Monday night’s opener of a four-game NLCS rematch between the Mets and Dodgers in Los Angeles; the series was an exciting one full of late-inning lead changes, with the two teams emerging with a split and three games decided by one run. Los Angeles had tied Monday’s game in the bottom of the ninth on a Shohei Ohtani sacrifice fly, and New York answered by scoring runs with back-to-back hits to start the 10th. With two outs and runners on the corners, Vientos had a chance to break the game open. He’d been hitting the ball hard lately but not getting great results, and when he smoked a 97-mph grounder to the right of shortstop Hyeseong Kim, it appeared to be more of the same. Kim reached the ball before it cleared the infield, but his throw to first base was an off-line one-hopper. It didn’t matter, as Vientos had fallen down before making it halfway down the line, because his right hamstring seized up.

On Tuesday, the Mets placed Vientos on the injured list and sent him back to New York to determine the severity of the injury. Manager Carlos Mendoza said on Wednesday that Vientos has a low-grade hamstring strain and is expected to receive treatment for 10-14 days before resuming baseball activities. To replace him on the roster, the Mets recalled 24-year-old Ronny Mauricio from Triple-A Syracuse. The former Top 100 prospect (no. 44 in 2022, and no. 90 in ’23, both as a 50-FV prospect) missed all of last season due to a right anterior cruciate ligament tear suffered during winter ball in February 2024. More on him below, but first, Vientos’ struggles are worth a closer look. Read the rest of this entry »

In early April, Davy Andrews penned an article that ran here at FanGraphs and began with the following: “You may have noticed that this is the Year of the Kick-Change.” My colleague went on to explain the pitch, which by now most people reading this are well familiar with. Our own coverage of the popular offering also includes an interview with Davis Martin and Matt Bowman from last September, and a feature from this spring on Hayden Birdsong, who throws a kick-change, and his teammate Landen Roupp, who does not. The pitch is thrown exclusively (at least to my knowledge) by supinators such as Martin, who explained that spiking his middle finger on a seam allows him to “kick the axis of the ball into that three o’clock axis [and] get that saucer-type spin to get the depth that a guy who could pronate a changeup would get to.”

Thinking about the pitch recently, a question came to mind: What would happen if a natural pronator tried to throw a kick-change?

In search of an answer, I queried three major league pitching coaches, as well as Tread Athletics’ Leif Strom, who in addition to having hands-on knowledge of the kick-change is credited with coining the term. Their responses varied. Moreover, they meandered a bit — but in a good way — as they offered insight into the science of throwing a baseball from a mound.

Here is what they had to say.

The following answers have been lightly edited for clarity.

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Desi Druschel, New York Mets

“There are a couple of ways to look at the kick-change. Most people interpret it as, ‘the spike kicks the axis,’ but I’m not necessarily convinced. Another thought is that [the middle finger] is just out of the way, and the ring finger kind of swipes below it. You’re kicking the axis, for sure, but I don’t know if it’s always kicking it how people might think. That would be on the one where there is more supination. Read the rest of this entry »

If, like me, you’re a weird baseball transactions sicko, you probably first heard of Luis Torrens at the tail end of 2016. That’s when the Padres, in the midst of an A.J. Preller-led teardown, shocked baseball by taking three low-minors players in the Rule 5 Draft and putting them all on the major league roster for 2017. It was a bold, unheard of tactic. The three players – Allen Córdoba, Miguel Díaz, and Torrens – were clearly not ready for the majors. Torrens, the most advanced of the trio, was 21 and had around 200 plate appearances of full-season minor league ball under his belt, and he was still learning his new position of catcher.

That trio was famously overmatched in 2017. Torrens racked up -1.3 WAR in 139 plate appearances, Córdoba -1.0 WAR in 227 of his own, and Diaz -0.7 WAR in 41 2/3 innings pitched. The whole experiment was an embarrassment for the league, and no one has since tried similar chicanery. The Padres sent them down after the season, as soon as they were eligible to do so without having to return them to their previous organizations; Torrens and Córdoba spent all of 2018 in the minors, and both struggled in A Ball. Torrens did finally return to the majors as a backup in 2019, but Preller flipped him to Seattle a year later and he slid into journeyman status. From 2019 through 2023, he bounced around, rarely getting consistent playing time, ending up with 668 plate appearances, a 92 wRC+, and -0.4 WAR thanks to iffy defense.

I’ve used what San Diego did in this particular Rule 5 Draft as a cautionary tale when people ask me about the risks of rushing low-level minor leaguers to The Show. I firmly believe that this Rule 5 manipulation interrupted each of their career arcs – they just weren’t ready for the challenge, which is hardly unexpected given where they’d been playing. Each was a promising prospect, but in the six years after the Padres selected them, the amount of time you’d expect them to be under team control, they combined for -3.2 WAR. Read the rest of this entry »

Mikey Romero has hit a few speed bumps since the Boston Red Sox drafted him 24th overall in 2022 out of California’s Orange Lutheran High School. A back injury limited the 21-year-old multi-position infielder to just 34 games in 2023, and he then didn’t return to game action until last May. He also missed time in August after suffering a concussion.

When healthy, it’s been mostly smooth sailing for the former first-rounder. [Boston took Roman Anthony 16 picks later the same year]. Romero’s last-season ledger included 16 home runs and a 125 wRC+ over 362 plate appearances between High-A Greenville and Double-A Portland.

He’s off to a strong start in the current campaign. Back at the higher of those levels, Romero is swinging to the tune of a 134 wRC+ in 154 trips to the plate. Fully half of his 34 hits have gone for extra bases. The San Diego native’s smooth left-handed stroke has produced 10 doubles, a pair of triples, and five home runs.

As the season was getting underway, I asked the promising youngster how he’s grown as a hitter since joining the professional ranks. Read the rest of this entry »

A couple of weeks ago, Hannah Keyser of The Bandwagon asked Kodai Senga about his reverse splits when it comes to times through the order. His .347 wOBA allowed the first time through the lineup drops to .275 the second time through it, and then sinks to .205 the third time through. However, his total batters faced sits at just 90 for each of the first two times through the order and 48 for the third time through. That’s a small enough sample that it’s difficult to say how much of the credit goes to Senga and how much is naturally occurring variation.

Either way it doesn’t matter much to Senga, who cares more about process than results, “Quite honestly, I don’t feel like I’m very good at any point during the game this year,” he told Keyser through his interpreter. Harsh words for a pitcher with an ERA- of 37. He does acknowledge that he makes adjustments throughout the game to get a better feel for his pitches and tweaks his strategy based on how each pitch is looking in a given start, which offers some explanation for the improved outcomes as the game goes on. But according to Senga, all of his pitches feel off this year, as he remains in the process of re-establishing his mechanics following the shoulder and calf injuries that sidelined him for nearly all of last year.

Senga’s self-evaluation reminds us that folks performing at the elite level of their fields don’t get there by letting good enough be good enough, but rather by insisting that nothing is ever good enough. To the layperson, it’s baffling to hear that Senga feels he’s pitching worse, despite posting better results than in 2023, his first MLB season, and the last in which he was fully healthy. Add on that he somehow manages to gain effectiveness throughout his starts despite a certain level of displeasure with all of his pitches, and it couldn’t be any clearer that regardless of what you read in Us Weekly, the stars are not actually just like us. Read the rest of this entry »

Hello, and welcome to another edition of Five Things I Liked (Or Didn’t Like) This Week. Memorial Day marks the point at which we’re a third of the way through the season, a great time to take stock of how preseason story lines have fared in the light of the regular season day. The Orioles might be bad. The Phillies and Tigers might be great. The Rockies might be the worst team of all time. Aaron Judge might be an alien. We’ve learned a lot so far – but none of those things affect the day-to-day experience of watching baseball. That’s what I like about it so much – you can turn on a random game, completely ignore any of those overarching narratives, and still see something delightful. So this week, let’s celebrate the little things that don’t necessarily win games but do consistently bring a smile to my face. With my customary nod to Zach Lowe of The Ringer for his basketball column that inspired this one, let’s dive in.

1. Determination
I’ve always been fascinated by Nick Allen, who blends elite shortstop defense with a completely powerless approach to offense. That combination got him traded to the Braves this winter to play a utility infielder role, but he outplayed Orlando Arcia in spring training to claim the starting job, and he’s been running with it. Not on offense – his 68 wRC+ is both mortifying and a career high – but on defense, he’s never been better.

Allen’s defense is many things, but most importantly to me, it’s kinetic. He doesn’t give up on plays. He’s always moving. He’ll throw from any platform, any arm angle, jump or twist or slide to get more force behind it. He’s graceful around second base, but it’s a nervous kind of grace, a ballet dancer after four shots of espresso. And if something gets in his way, he’ll just run through it:

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Earlier this month, an article titled “Executive’s View: How Have Analytics Impacted a General Manager’s Job?” was published here at FanGraphs. Featured were Ross Atkins, Brian Cashman, Jerry Dipoto, and John Mozeliak, with the foursome sharing their perspectives on this ever-evolving aspect of their shared position.

Shortly after the piece ran, two people suggested David Stearns as a followup interview subject. That’s understandable. Now in his second season as the president of baseball operations for the New York Mets, the 40-year-old Ivy League product has two decades of experience within the industry, almost all of it in front offices.

A summer intern with the Pittsburgh Pirates prior to graduating from Harvard University in 2007, Stearns subsequently worked in MLB’s central office, then served as co-director of baseball operations with Cleveland, became an assistant general manager with the Houston Astros, and, in 2015, was hired by the Milwaukee Brewers as general manager. His data-driven approach was a common thread throughout. Moreover, he has remained true to his analytic bent since assuming his current position following the 2023 season.

Stearns was at Fenway Park this past week when the Red Sox hosted the team whose front office he now leads, so I took the opportunity to get his perspective on the subject at hand. Here is our conversation, lightly edited for clarity.

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David Laurila: I’ll start with the question I asked Atkins, Cashman, Dipoto, and Mozeliak: How has the continued growth of analytics impacted the job?

David Stearns: “Over the span of my career, we’ve been inundated with more and more sources of information — information sources that are increasingly granular in nature, increasingly have to do with the processes of playing baseball, and not necessarily the results or outcomes of playing baseball. Those lead towards more and more complex algorithms and models that require greater numbers of analysts, and really smart, creative people to have in a front office. So, one of the greatest changes is just the size of the departments within baseball. The information has grown to such a enormous extent that we need more and more people to manage the information. That’s the first thing that comes to my mind. And then we need to make all that information actionable.” Read the rest of this entry »

Welcome to another edition of Five Things I Liked (Or Didn’t Like) This Week. Actually, the title is a misnomer today. A week of baseball is great, but you know what else is great? A single game of baseball. Monday night, Paul Skenes and the Pirates took on the scalding-hot Mets. It was one of the most exciting matchups we’ll get all regular season, pitting my pick for the best pitcher in baseball against one of the top offenses in the game. This being baseball, the best pregame matchups don’t always lead to the most exciting events. This time, however, the hype was warranted, and the game was both delightful and delightfully weird. So with apologies to Zach Lowe for changing the format he created, let’s try this again: Welcome to Five Things I Liked During The Mets Pirates Game From Monday.

1. My Skenes vs. Your Team
It’s downright crazy how good Skenes is. He’s so fun to watch, at least as long as he isn’t making your team look silly. He throws everything, and all of it is nasty. He drew swinging strikes on five different pitch types, and some of them left batters baffled:

Juan Soto doesn’t look like that very often. But that’s because pitchers like Skenes also don’t come around very often. Seriously, this pitch was 94 miles an hour?! This is unfair:

The Mets hassled Skenes repeatedly throughout his six innings. He surrendered six hits, tying a career high, and walked three. But when there were runners on base, Skenes found another gear. Five of his six strikeouts came with men on. He threw harder, pitched for whiffs, and generally flummoxed his opponents. He’s not always going to allow only one run, but despite the Mets finding occasional cracks in his armor, one earned run felt like a fair result. When Skenes is on the mound, the other team starts at a disadvantage. Read the rest of this entry »