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

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

FIRST LOOK: sponsor patches on 2023 MLB jerseys

Why MassMutual invested in a jersey sponsorship with the Red Sox

Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images

Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe

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

Brattleboro man honored at Red Sox EMS Night, Community News

Red Sox will have MassMutual logo on their jerseys beginning in 2023

Red Sox, MassMutual Partner Up

Chris Sale returns from injury, leads Red Sox over Tigers

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

Red Sox reveal 2023 uniform change

Boston Red Sox sign BetMGM as first betting sponsor

Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times