MassMutual is first jersey patch sponsor of the Red Sox
Red Sox Mass Mutual Collaboration – NBC Boston
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It's come to this: our Red Sox as human billboards
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Red Sox will have MassMutual logo on their jerseys beginning in
A $17 million annual deal by the Red Sox stokes debate on the