MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

MassMutual is first jersey patch sponsor of the Red Sox

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

MLB Jersey Patch Market Warming Up As Season Approaches

Marlins, ADT announce jersey patch sponsorship - Fish Stripes

MassMutual is first jersey patch sponsor of the Red Sox

A rough patch: the Astros' new sponsorship deal with Oxy is doubly

jerseys – Blogging the Red Sox

Red Sox to sport MassMutual logo under new partnership - Boston

Chris Sale credited Alex Cora's 'Dodgeball' reference after first win

Brewers sign former Red Sox outfielder Raimel Tapia

Red Sox reveal first-ever uniform advertisements; MassMutual

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