MassMutual is first jersey patch sponsor of the Red Sox

Red Sox debut new uniform advertisements as part of 10-year deal

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Red Sox, MassMutual near a $17M jersey patch deal - Boston

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Boston Red Sox and Springfield-based life insurer, MassMutual

Boston Red Sox make history with record $170 million ad-patch deal

Red Sox reveal first-ever uniform advertisements; MassMutual

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

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Boston Red Sox sign BetMGM as first betting sponsor

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