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Red Sox Promote Top Prospect Marcelo Mayer Following Alex Bregman Injury

Alex Bregman is expected to land on the injured list after an MRI revealed worsening quad tightness, prompting Boston to call up their highly-touted infield prospect.

Boston Red Sox's Alex Bregman bends over before leaving the game after injuring himself on a single against the Baltimore Orioles during the fifth inning in the first baseball game of a doubleheader Friday, May 23, 2025, at Fenway Park in Boston. (AP Photo/Winslow Townson)
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BOSTON, MASSACHUSETTS - MAY 21: Rafael Devers #11 of the Boston Red Sox reacts during the third inning against the New York Mets at Fenway Park on May 21, 2025 in Boston, Massachusetts.

Overview

  • Alex Bregman exited Friday's game against the Orioles with right quadriceps tightness and is likely headed to the injured list after reporting increased soreness on Saturday.
  • Manager Alex Cora confirmed that Rafael Devers will remain at designated hitter, ruling him out as a third base replacement despite Bregman’s absence.
  • The Red Sox have promoted Marcelo Mayer, their top infield prospect and Baseball America’s No. 9 prospect, from Triple-A Worcester to address infield depth concerns.
  • Mayer, who has been excelling in Triple-A with a .271 batting average, nine home runs, and 43 RBIs, could see playing time at third base or other infield positions.
  • Bregman, a key offseason acquisition, has been one of Boston’s best offensive performers this season, leading AL third basemen in several key metrics.