MassMutual will be the first sponsor to have its logo on Red Sox

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

Red Sox Mass Mutual Collaboration – NBC Boston

It's come to this: our Red Sox as human billboards

Cleveland Guardians Announce Jersey Sponsorship - Sports Illustrated Cleveland Guardians News, Analysis and More

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

Red Sox reaping benefits from one 2022 trade, Chaim Bloom's 'outstanding job'

Red Sox Winter Weekend

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

Red Sox Reportedly Strike $170M Jersey Patch Deal