Red Sox play ball with a new signature sponsor - BOStoday
Sox say so long to John Hancock. But hello maybe to MassMutual
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in
Proud Partner of the Boston Red Sox
MassMutual, Red Sox announce multiyear partnership
MassMutual lands deal for patch on Red Sox uniforms; Springfield
Men's Boston Red Sox Pro Standard White Team Logo T-Shirt
Red Sox play ball with a new signature sponsor - BOStoday
Houston Astros reveal Oxy as first ever jersey partner - SportsPro
Red Sox Mass Mutual Collaboration – NBC Boston
Red Sox to sport MassMutual logo under new partnership - Boston