MassMutual is first jersey patch sponsor of the Red Sox
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox
Red Sox will have MassMutual logo on their jerseys beginning in 2023
MLB Team Sponsorship Revenue Grew To $1.5 Billion In 2023, Report Shows
Cleveland Guardians to wear Marathon jersey patch
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
MassMutual is first jersey patch sponsor of the Red Sox
Yankees Announce Starr Insurance Jersey Patch, Partnership in Video, News, Scores, Highlights, Stats, and Rumors