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

Red Sox to sport MassMutual logo under new partnership - Boston

The Future Of Jersey Sponsorships Across US Sports Leagues

MassMutual is first jersey patch sponsor of the Red Sox

Sox say so long to John Hancock. But hello maybe to MassMutual

Red Sox reaping benefits from one 2022 trade, Chaim Bloom's

Red Sox reach $170 million jersey-patch deal, Mets also interested

Red Sox reveal first-ever uniform advertisements; MassMutual

MLB Opening Day: Jersey Patches - Foul Or Fair Game?

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

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