Red Sox will have MassMutual logo on their jerseys beginning in 2023
Boston Red Sox sign BetMGM as first betting sponsor
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Why MassMutual invested in a jersey sponsorship with the Red Sox
Yankees Announce Starr Insurance Jersey Patch, Partnership in Video, News, Scores, Highlights, Stats, and Rumors
It's come to this: our Red Sox as human billboards
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
MLB's Detroit Tigers expand Meijer sponsorship with jersey patch deal
Red Sox, MassMutual Partner Up
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal