Mets Face A First Base Debate That Could Reshape Their Lineup

As the New York Mets look to strengthen their first base lineup for 2026, Juan Soto and three other potential candidates are on the radar for crucial fielding roles.

Who’s on first for the Mets? That’s one of the bigger offseason questions hanging over Queens, and it’s hard to ignore the fact that Jared Young has looked good there while also being someone the team probably can’t afford to lean on as the whole answer.

The Mets also have Jorge Polanco around, even if somewhat unwillingly. That alone makes the case for building in more depth at first base before the season gets away from them.

Before the 2026 season ends, there are four players who should at least spend an inning with a first baseman’s mitt.

Juan Soto is the obvious name at the top of the list. Around the league, there’s already a sense that first base could be part of his future with the Mets before his contract runs out.

That’s usually the route teams start exploring with outfielders whose defense has slipped below average, and Soto fits that description. He hasn’t been atrocious in left field this year, but he’s still not a strong defender there.

Coming off two calf injuries, including the one that’s sidelining him now, a brief look at first base this season could serve as the first step in a slower transition. Maybe he takes to it.

The Mets have made every effort to keep Soto comfortable and happy, and the idea here is to test the waters now, then maybe expand it to a few appearances in 2027 and something closer to half the time in 2028.

Francisco Alvarez belongs in the conversation for a different reason. The bat is part of the equation, but the glove behind the plate is not enough to lock him into everyday catching duties.

With the Mets putting so much into defense, it makes sense to see whether he can give them something useful at first base. There’s no guarantee he’d be good right away, but if it helps keep his bat in the lineup without simply parking him at DH, that adds another layer of flexibility.

If the Mets are going to keep both Alvarez and Luis Torrens, they stand to gain more if Alvarez can at least handle acceptable defense somewhere else. First base is the spot.

Marcus Semien is the more unexpected idea, but it isn’t as wild as it sounds. He’s not long removed from winning Gold Gloves at second base, yet this year has been a huge step back.

With his range diminished, a move away from second could make sense, and first base would be a natural landing spot if the Mets need one. The thinking is straightforward: if a player has been a strong defender at one position, he may be able to handle first.

That possibility could become more relevant by 2028, especially if several prospects are pushing him out by then.

Then there’s Ronny Mauricio, whose path with the Mets looks narrow unless he can somehow become a first-base option. He has enough agility to play shortstop and enough size to fit the first-base profile, and the Mets have already tried worse defenders there without success.

Any real attempt would have to start in Triple-A, because the big-league opportunities appear limited. By 2027, he’d already be out of options, so this would be a last-ditch attempt to carve out a role.

Even then, there’s real doubt he could match what Young has been doing.

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