The Future Of Jersey Sponsorships Across US Sports Leagues
Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox reportedly sign jersey patch deal with MassMutual
Red Sox Mass Mutual Collaboration – NBC Boston
Detroit Tigers to add Meijer patch on jerseys
MLB Opening Day: Jersey Patches - Foul Or Fair Game?
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
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