MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox
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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. /
MassMutual is first jersey patch sponsor of the Red Sox
MassMutual logo patches
Logos and uniforms of the Boston Red Sox - Wikipedia
Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Red Sox will have MassMutual logo on their jerseys beginning in 2023
jerseys – Blogging the Red Sox
MLB Jerseys' to Feature Corporate Sponsor Logos for First Time Ever In 2023
