MassMutual is first jersey patch sponsor of the Red Sox

MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball

Red Sox reportedly sign jersey patch deal with MassMutual

Check Out New Photos Of Red Sox Partnership Jersey Patch

Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times

Red Sox reach $170 million jersey-patch deal, Mets also interested

MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald

Red Sox will have MassMutual logo on their jerseys beginning in 2023

MLB Opening Day: Jersey Patches - Foul Or Fair Game?

Phillies may have sponsored uniform patch this season