Ten-year partnership sees the insurer become the MLB team's first jersey patch partner.
MassMutual will be the first sponsor to have its logo on Red Sox
MassMutual will be the first sponsor to have its logo on Red Sox
The MassMutual jersey patch is displayed during a Boston Red Sox News Photo - Getty Images
Red Sox improve to 5-1 vs. Yankees thanks to Brayan Bello
Boston Red Sox recall infielder Bobby Dalbec and left-hander Chris
MassMutual will be the first sponsor to have its logo on Red Sox
MassMutual will be the first sponsor to have its logo on Red Sox
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox
