MassMutual is first jersey patch sponsor of the Red Sox
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph
Red Sox reportedly sign jersey patch deal with MassMutual
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Braves add Quikrete as uniform sponsorship patch
Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox
MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Check Out New Photos Of Red Sox Partnership Jersey Patch
MLB Jersey Patch Market Warming Up As Season Approaches
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe