Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
jerseys – Blogging the Red Sox
Cleveland Guardians Announce Jersey Sponsorship - Sports Illustrated Cleveland Guardians News, Analysis and More
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
jerseys – Blogging the Red Sox
Take us out to the ballgame - BOStoday
Red Sox reveal 2023 uniform change
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Final Red Sox homestand of the year is one of lasts – Boston 25 News
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Houck leads Red Sox past AL East champion Orioles 6-1 in finale - WTOP News