Boston locks in young core while prioritizing development around him.
The Red Sox didn’t exactly hide where this was heading.
They just made Marcelo Mayer earn it.
On Saturday, Boston officially named the 23-year-old its starting second baseman heading into the 2026 season, solidifying what had been the most anticipated/quietly inevitable decision of the spring.
Manager Alex Cora told the media Saturday morning that Mayer made the Opening Day roster, though with a caveat:
The left-handed hitter will be protected against certain left-handed pitchers early on.
Even with that built-in platoon, the message is clear.
Second base finally belongs to someone.
For years, the position has been a revolving door in Boston. Since Dustin Pedroia’s retirement, the Red Sox have cycled through options without ever landing on a long-term answer.
Now, they’re handing the baton to a former top prospect who, despite a modest spring stat line, checked every box the organization needed him to.
Feb 27, 2026; North Port, Florida, USA; Boston Red Sox second baseman Marcelo Mayer (11) throws to first base in the second inning against the Atlanta Braves during spring training at CoolToday Park. (Jonathan Dyer/Imagn Images)“We wanted to push him,” Cora said Saturday, explaining why the announcement took time.
Mayer didn’t dominate Grapefruit League pitching, hitting .214/.389/.321 in limited action, but this decision was never going to come down to a few weeks in March. It’s about trajectory, and Mayer’s has long pointed here.
A former No. 4 overall pick in 2021, Mayer climbed prospect rankings as one of the most polished young infielders in the game. He made his big-league debut in 2025 and showed flashes across 44 games before a wrist injury cut his season short. Now healthy, the Red Sox are less concerned with immediate stardom and more focused on stability, growth, and availability.
He doesn’t need to be a finished product yet.
He just needs to be there. Consistently.
Around him, the rest of the infield has fallen into place.
Willson Contreras slots in at first base, Trevor Story remains at shortstop, and offseason acquisition Caleb Durbin takes over at third. It’s a group that blends experience with upside, but Mayer is the piece that brings long-term clarity.
One quick note elsewhere on the roster:
Kristian Campbell was optioned to Triple-A Worcester, a move that reflects more about roster construction than talent.
With limited at-bats available and defensive adjustments still ongoing, the organization opted to prioritize everyday reps for him in the minors.
For Mayer, though, the opportunity is here.
And this time, it’s not temporary.
Jul 13, 2025; Boston, Massachusetts, USA; Boston Red Sox outfielder Ceddanne Rafaela (3) celebrates with third base Marcelo Mayer (39) after hitting a two-run home run against the Tampa Bay Rays during the sixth inning at Fenway Park. (Brian Fluharty/Imagn Images)JOIN THE CONVERSATION:
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Tom Carroll is a contributor for Roundtable, with boots-on-the-ground coverage of all things Boston sports. He's a senior digital content producer for WEEI.com, and a native of Lincoln, RI.