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11h ago

Red Sox Assign No. 11 to Marcelo Mayer in Official Roster Update

The change follows Rafael Devers’ June exit, signaling a larger 2026 role for the 23-year-old infielder.

Marcelo Mayer points to the Red Sox dugout after hitting a home run on June 11.
Jul 12, 2025; Boston, Massachusetts, USA; Boston Red Sox third baseman Marcelo Mayer (39) makes a catch against the Tampa Bay Rays during the first inning at Fenway Park. Mandatory Credit: Eric Canha-Imagn Images.

Overview

  • The Red Sox website and MLB.com now list Marcelo Mayer wearing No. 11 after switching from No. 39.
  • Recent acquisition Willson Contreras has been assigned No. 40 following his December 21 move to Boston.
  • Utility player Nate Eaton changed from No. 40 to No. 18 to clear No. 40 for Contreras.
  • Rafael Devers wore No. 11 for nine seasons in Boston before his June 2025 trade to the Giants, leaving the number unused for the rest of the season.
  • Mayer finished his 2025 rookie year at .228/.272/.402 and could open 2026 at second or third base depending on further offseason decisions.