MassMutual is first jersey patch sponsor of the Red Sox
The Boston Red Sox announced a major off-the-field partnership with MassMutual
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
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
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Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Red Sox accidentally picked Yankees fan to sponsor jerseys for next decade
