Yankees won't have jersey patch for Opening Day, but it's coming
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
MassMutual is first jersey patch sponsor of the Red Sox
MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images
John Hancock ending long-held Boston Red Sox sponsorship
MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)
Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –
Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports