MassMutual is first jersey patch sponsor of the Red Sox

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year

Red Sox will have MassMutual logo on their jerseys beginning in

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

Red Sox, MassMutual Partner Up

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

Boston Red Sox sign BetMGM as first betting sponsor

Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of

MassMutual, Red Sox announce multiyear partnership

The Boston Red Sox announced a major off-the-field partnership

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