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
Yankees won't have jersey patch for Opening Day, but it's coming
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph
jerseys – Blogging the Red Sox
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Red Sox Reportedly Strike $170M Jersey Patch Deal
Cardinals beat Red Sox 4-3 as Kenley Jansen blows 9th inning lead for 2nd straight day
Boston Red Sox and Springfield-based life insurer, MassMutual partner up
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox - MassMutual