MassMutual is first jersey patch sponsor of the Red Sox
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
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Red Sox will have MassMutual logo on their jerseys beginning in 2023
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Phillies may have sponsored uniform patch this season
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OTM Open Thread 12/1: It is Thursday - Over the Monster
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
MLB Opening Day: Jersey Patches - Foul Or Fair Game?
2) 2023 Boston Red Sox MassMutual Advertising Jersey Patch
It's come to this: our Red Sox as human billboards
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The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News
Yankees won't have jersey patch for Opening Day, but it's coming
