Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Red Sox to sport MassMutual logo under new partnership - Boston

Red Sox Mass Mutual Collaboration – NBC Boston

Boston Red Sox Archives - SportsPro

Houston Astros reveal Oxy as first ever jersey partner - SportsPro

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Red Sox play ball with a new signature sponsor - BOStoday

MassMutual will be the first sponsor to have its logo on Red Sox

Boston Red Sox bag US$170m MassMutual jersey patch deal, says

MassMutual is first jersey patch sponsor of the Red Sox

Houston Astros reveal Oxy as first ever jersey partner - SportsPro

MassMutual will be the first sponsor to have its logo on Red Sox

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