MassMutual is first jersey patch sponsor of the Red Sox

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

Yankees won't have jersey patch for Opening Day, but it's coming

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

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

MassMutual, Red Sox announce multiyear partnership

Yankees Announce Starr Insurance Jersey Patch, Partnership in Video, News, Scores, Highlights, Stats, and Rumors

Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro

Red Sox play ball with a new signature sponsor - BOStoday

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Logos and uniforms of the Boston Red Sox - Wikipedia

Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox