MassMutual is first jersey patch sponsor of the Red Sox

The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News

FIRST LOOK: sponsor patches on 2023 MLB jerseys

Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox

Bruins reveal cybersecurity firm Rapid7 will be first sponsor of patch on game and practice jerseys - The Boston Globe

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

Cleveland Guardians to wear Marathon jersey patch

Astros agree to deal to add Oxy jersey patch for 2023 season

Red Sox play ball with a new signature sponsor - BOStoday

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

OTM Open Thread 12/5: It is Monday - Over the Monster

Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times

jerseys – Blogging the Red Sox