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15h ago

Red Sox Assign No. 11 to Marcelo Mayer as Official Roster Updates Go Live

The update underscores expectations for a larger role in 2026.

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

  • Team and MLB.com roster pages now list Marcelo Mayer in No. 11 after his switch from No. 39.
  • The number was vacated when Rafael Devers, who wore it for nine seasons, was traded to the Giants in June.
  • Recent acquisition Willson Contreras has been assigned No. 40 following his December 21 arrival from St. Louis.
  • Utility player Nate Eaton changed from No. 40 to No. 18 to clear No. 40 for Contreras.
  • Reporting projects Mayer for increased responsibility next season, potentially at second or third base after a 2025 rookie line of .228/.272/.402.