The MassMutual jersey patch is displayed during a Boston Red Sox News Photo - Getty Images
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
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The MassMutual jersey patch is displayed during a Boston Red Sox Photo d'actualité - Getty Images
515 Nesn Boston Red Sox Photos & High Res Pictures - Getty Images
The MassMutual jersey patch is displayed during a Boston Red Sox Photo d'actualité - Getty Images
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro