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

Yankees Announce Starr Insurance Jersey Patch, Partnership in Video, News, Scores, Highlights, Stats, and Rumors

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

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

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

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo

FIRST LOOK: sponsor patches on 2023 MLB jerseys

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

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro