Article: Top Red Sox Prospect Marcelo Mayer Has Been Called Up To Boston

[Nick John]

The Boston Red Sox are calling up Marcelo Mayer.

As first reported by Katie Morrison-O'Day of MassLive on X (formerly Twitter), Mayer was receiving congratulations from teammates and coaches and appears headed for Boston for the second game of today’s doubleheader with Baltimore.

Mayer, drafted fourth overall in 2021 is one of Boston's top prospects and is currently ranked second on several lists. Since being drafted Mayer has hit .273/.360/.466 in 315 games.

For Triple-A Worcester this season Mayer has hit .271/.347/.471 in 43 games. He’s also hit nine home runs and driven in 43 runs.

Update 5/24/25 5:30pm

Mayer has officially been announced as being called up by the Boston Red Sox and will wear number 39 with the team.

To make room for Mayer on the 40-man roster, Boston moved Triston Casas to the 60-Day injured list. To create room on the 26-man roster Boston placed Alex Bregman on the 10-Day injured list with a right quad strain. 

More information will be added as it becomes available.

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[TedYazPapiMookie]

It will be interesting to see how the Mayer experiment will turn out initially.  It was good to see him finally make contact on his fourth at bat.  Should raise his confidence for the next game.  For those expecting him to be great from the start, it's probably not going to happen.  The key is can he field better than he did in the minors.  This will be a good test for him.  It might also help Campbell get back on track as the two reunite and share experiences with each other. 

Without Bregman for the length of time being suggested the team is in deep trouble.  Devers has been on a sustained run on offense and we all know that can't last.  When his batting regresses and it will, several players are going to need to step up if the team is to stay near .500 until Bregman gets back.  It's probably a good idea for Breslow to go get a real 1B so the daily line-up will only be down Bregman with Mayer playing for him.  The core team has talent on offense but 1B is a hole and 3B will be a struggle.

June's schedule isn't as tough as May's but it does have 6 games with the Yankees and we could be swept in both series based on recent performances.  Crochet needs to be a Yankee stopper twice in June.  The key is to keep the games back behind the Yankees to no more than 10 by the time Bregman gets back.