MassMutual will be the first sponsor to have its logo on Red Sox
NYSportsJournalism.com - Home
Red Sox reveal first-ever uniform advertisements; MassMutual
Boston Red Sox Archives - SportsPro
MassMutual becomes 'signature sponsor' for Boston Red Sox
Proud Partner of the Boston Red Sox
For the first time, historic Boston Red Sox jersey will have a
Men's Boston Red Sox Pro Standard White Team Logo T-Shirt
Red Sox reach $170 million jersey-patch deal, Mets also interested
Boston Red Sox Archives - SportsPro
MassMutual lands deal for patch on Red Sox uniforms; Springfield