The 2026 Mets have been a mess in just about every direction, and the trade deadline offers a chance to start clearing some of the clutter. Some players have already worn out their welcome with the fan base, while others may simply be too expensive or too damaged in value to move right away. Either way, the offseason could bring another round of housecleaning.
There are plenty of Mets fans who would happily see a number of players go, but four names stand out as the ones nobody would lose sleep over if they were sent packing.
Mark Vientos once looked like he was becoming a centerpiece. During the Mets’ 2024 NLCS run, he put together a regular season that included 27 home runs and a .837 OPS, then raised the bar even higher in October with five home runs and a .998 OPS. That felt like the start of something real.
Instead, 2025 brought a sharp drop, and 2026 has been worse. His bat has backed up, his defense has never given the Mets much help, and that combination has left him with very little value and a lot of frustrated fans. Vientos has been out since early July after taking a fastball off the hand, and he’s under contract through 2028, but his standing with the fan base has cratered.
Kodai Senga has taken a similar fall in the eyes of Mets supporters. He was an All-Star in 2023, his rookie season, when he went 12-7 with a 2.98 ERA. Injuries wrecked most of 2024, limiting him to one start, but he looked like himself again in the first half of 2025.
For his first 14 starts that year, Senga posted a brilliant 1.39 ERA. Then came the awkward injury on the play where he landed trying to cover first base after Pete Alonso threw over his head. When he came back, the results fell apart, and he finished that stretch with a 6.56 ERA in eight starts.
This season has been even uglier. In 12 games, including five out of the bullpen, Senga has an 8.85 ERA and a WHIP approaching 2.000.
He’s under contract through 2027, with a conditional club option for 2028, and with Nolan McLean, Christian Scott and Zac Thornton leading the Mets’ youth movement in the rotation, Senga could become an offseason trade chip for a club willing to bet on the upside. Even if the return is light, that would still make sense for the Mets.
Brett Baty has also gone from intriguing to exasperating. After a rough start to his career from 2022 to 2024, when he posted a .609 OPS in 169 games, he finally made real progress in 2025. That season brought 18 home runs, a .748 OPS and strong defense.
But 2026 has been a step backward. Baty has bounced around the field as a utility option, and he has looked uncomfortable in the outfield and even at first base.
His OPS is more than 100 points lower than it was last season, and the promise of a breakout has faded again. He’s under contract through 2029, has drawn trade interest before, and still offers solid defense at third base and second base, but that’s about where the positives stop right now.
Marcus Semien is the last name on the list, and his situation may be the most frustrating of all. One of Stearns’ first major moves in the offseason was bringing him in for Brandon Nimmo, and plenty of Mets fans were willing to buy in because of the defense at second base and the shorter contract.
That optimism has vanished. Semien has been one of the worst players in baseball this season, with an OPS that has lived in the high .500s and low .600s, and his fielding has slipped too, despite winning a Gold Glove last year. The soon-to-be 36-year-old is owed $26 million next year and $20 million in 2028 before hitting free agency, which makes him a difficult player to move.
Still, if the Mets are serious about competing in 2027, they can’t keep running him out there at second base. The only realistic way to move on is to absorb most or all of the money, whether that happens in a trade or through a release. However it happens, Mets fans will be glad when it does.
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