MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
2023 MLB Uniform Tracker – March 2023 – SportsLogos.Net News
SportsLogos.Net's 2022 Year In Review – SportsLogos.Net News
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
boston red sox – SportsLogos.Net News
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports