Navy MassMutual patch. -White MassMutual patch. The white patch will be worn on the alternate navy jersey. The navy patch will be worn on all other
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Cleveland Guardians to wear Marathon jersey patch
MLB Jersey Patch Market Warming Up As Season Approaches
Milwaukee Brewers Add Northwestern Mutual Logo to Jersey – SportsLogos.Net News
Posts - Baseball
The Boston Red Sox announced a major off-the-field partnership with MassMutual
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Red Sox Reportedly Strike $170M Jersey Patch Deal
Red Sox uniforms will be unaffected by new MLB rules in 2023
What MLB teams will have uniform ad patches in 2023?