Boston Red Sox bag US$170m MassMutual jersey patch deal, says
MassMutual is first jersey patch sponsor of the Red Sox
Red Sox reveal first-ever uniform advertisements; MassMutual
Boston Red Sox Winter Weekend at MGM Springfield canceled for
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Boston Red Sox Winter Weekend coming to Springfield; annual fan
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
MassMutual will be the first sponsor to have its logo on Red Sox
Ortiz, Pedro, Boggs to Participate in Red Sox Winter Weekend
Boston Red Sox on the Forbes MLB Team Valuations List