Alex Vesia Could Be the Piece That Restores Balance to the Mets' Bullpen

One advantage that has made a genuine difference in the New York Mets’ pitching over the last two seasons has been the ability of their left-handed relievers to strike out hitters and avoid walks, keeping their K-BB% hovering above 16%. However, they have had different problems in 2025 and 2026 that should be a focus of attention for next season.

Last year, hitters posted a .320 BABIP against that contingent, their highest mark since the 2020 season. That problem found some solution in 2026, when the left-handers combined to allow a .290 BABIP out of the bullpen, but then another complicated situation arose, and that was that hitters improved their HR/FB rate from 7.9% to 10.9%. With the exception of Brooks Raley (4.4%) and Nate Lavender (4.2%), the rest of the left-handers allowed a rate above 10%: Cionel Perez (25.0%), Jefry Yan (20.0%), Richard Lovelady (16.7%), A.J. Minter (11.4%), David Peterson (11.1%) and Sean Manaea (10.2%). In addition, most of them were vulnerable with runners on base.

Among the pitchers still on the roster, Manaea (12.9 BB%) and Yan (12.2 BB%) were the most erratic arms. With the exception of Minter and Lavender, the rest posted walk rates above 6.0% with runners on base.

Obviously, that is the exact opposite effect of what we want to see from the left-handed pitchers in a bullpen. The good news, within the chaos, is that the Mets took an interesting turn in the second half of the season, when it seemed that the departures of Raley and Minter would limit the bullpen’s left-handed power. It was quite the opposite, thanks to Lavender remaining consistent and being basically the only arm capable of handling pressure moments, driving a reduction in xFIP from 3.95 to 2.93, with a surprising 32.9% strikeout rate in 21 appearances.

However, it is clear that Lavender will not be able to carry this load alone for an entire season, and we still need to see if he will manage to maintain the best version we saw this year when the workload increases and the league begins to adjust against his pitches.

That said, the Mets have recently revealed that they will look for arms capable of handling the pressure, and there are several free agents who fit that profile, even with projections well above the value that Minter and Raley provided. One of my favorite choices at this point is left-hander Alex Vesia, who has garnered a strong reputation as a championship-caliber reliever in the Los Angeles Dodgers' bullpen.

Two things I love about Vesia are that he has been accustomed to dealing with pressure and has been a consistent pitcher throughout his career, with the ability to take on large workloads. In his last five seasons, he has pitched in at least 56 games, with an average of 68 appearances per 162 games, accumulating 5.6 bWAR in 326 appearances during that period. Among all the free-agent relievers currently available on the market, Vesia has the highest strikeout rate (31.2%), even surpassing Adrian Morejon, plus the lowest xBA (.164) allowed, with the second-best xERA (2.68) and the second-best whiff rate (33.6%), in both aspects behind Morejon.

He has also been a tormentor of left-handed hitters, limiting them to a career .170/.252/.277 slash line, with 189 strikeouts and just 49 walks in 548 matchups. In 2026, he had the highest number of matchups of his career against left-handed hitters (106) and limited them to a .471 OPS.

Vesia does have a major flaw: his high walk rates, which often make him get himself into complicated situations. This year, he did not escape those problems, as his walk rate fell from the 28th percentile to the 4th, after finishing with a 16.0 BB% rate against right-handers, his worst mark since 2021, and 10.0% against left-handers, the highest since 2022.

Still, Vesia remains effective enough to solve most problems under pressure. He has done so every year with his three elite pitches, his four-seam fastball, a sweeping slider that has been his main strikeout weapon, and a devastating changeup that led the league with a 48.5% whiff rate in 2026. If the Mets can look past his occasional control issues, he could become a key piece of their relief corps for the foreseeable future.

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