MassMutual is first jersey patch sponsor of the Red Sox

3,551 Shirt Sponsor Stock Photos, High-Res Pictures, and Images - Getty Images

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

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

OTM Open Thread 12/5: It is Monday - Over the Monster

Why MassMutual invested in a jersey sponsorship with the Red Sox

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

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

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

L.A. Angels have new MLB jersey patch sponsorship

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News