Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Boston Red Sox bag US$170m MassMutual jersey patch deal, says
Red Sox to sport MassMutual logo under new partnership - Boston
The Boston Red Sox announced a major off-the-field partnership
Red Sox to sport MassMutual logo under new partnership - Boston
Red Sox debut new uniform advertisements as part of 10-year deal
Red Sox to sport MassMutual logo under new partnership - Boston
MassMutual lands deal for patch on Red Sox uniforms; Springfield
MassMutual, Red Sox announce multiyear partnership
MassMutual will be the first sponsor to have its logo on Red Sox