MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox
What MLB teams will have uniform ad patches in 2023?
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
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A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options
Cleveland Guardians Announce Jersey Sponsorship - Sports Illustrated Cleveland Guardians News, Analysis and More
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox reach $170 million jersey-patch deal, Mets also interested
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Milliken's Red Sox recap - Mariners 10, Red Sox 1
