MassMutual will be the first sponsor to have its logo on Red Sox
Red Sox reach $170 million jersey-patch deal, Mets also interested
Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –
The Future Of Jersey Sponsorships Across US Sports Leagues
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Final Red Sox homestand of the year is one of lasts – Boston 25 News
John Henry, Chaim Bloom receive frigid reception at Red Sox Winter Weekend, Red Sox
Chris Sale returns from injury, leads Red Sox over Tigers
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Red Sox Reportedly Strike $170M Jersey Patch Deal
MassMutual, Red Sox announce multiyear partnership
Red Sox Winter Weekend
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe