Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Red Sox will have MassMutual logo on their jerseys beginning in 2023
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
MLB Jersey Patch Market Warming Up As Season Approaches