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

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

Chris Sale returns from injury, leads Red Sox over Tigers

Twins making careful decision about ad patches on players' jerseys

Logos and uniforms of the Boston Red Sox - Wikipedia

Red Sox Mass Mutual Collaboration – NBC Boston

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

Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /

A rough patch: the Astros' new sponsorship deal with Oxy is doubly ugly, Houston Astros

jerseys – Blogging the Red Sox

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo