MassMutual is first jersey patch sponsor of the Red Sox

Red Sox play ball with a new signature sponsor - BOStoday

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

Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro

MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)

St. Louis Cardinals land Stifel as first jersey patch sponsor

Bruins reveal cybersecurity firm Rapid7 will be first sponsor of patch on game and practice jerseys - The Boston Globe

Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox

Check Out New Photos Of Red Sox Partnership Jersey Patch

Red Sox, MassMutual Partner Up

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

Red Sox reportedly sign jersey patch deal with MassMutual

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

Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports