Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo
MLB Opening Day: Jersey Patches - Foul Or Fair Game?
MassMutual logo patches
MLB Jersey Patch Market Warming Up As Season Approaches
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports
Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times
Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro