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

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News

A rough patch: the Astros' new sponsorship deal with Oxy is doubly ugly, Houston Astros

Red Sox, MassMutual Partner Up

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo

Red Sox will not be affected by MLB's new uniform rules in 2023

MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball

Red Sox play ball with a new signature sponsor - BOStoday

MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal

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