MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
MassMutual is first jersey patch sponsor of the Red Sox
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
MLB's Detroit Tigers expand Meijer sponsorship with jersey patch deal
Red Sox accidentally picked Yankees fan to sponsor jerseys for next decade
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Yankees won't have jersey patch for Opening Day, but it's coming
Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /
Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –
Kiké Hernandez isn't a fan of the Red Sox's new ad patch