MassMutual is first jersey patch sponsor of the Red Sox

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

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

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

jerseys – Blogging the Red Sox

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

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

Jersey patch ads could be coming for Yankees, Mets in the near future

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

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

MassMutual is first jersey patch sponsor of the Red Sox