MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
MassMutual, Red Sox announce multiyear partnership
FIRST LOOK: sponsor patches on 2023 MLB jerseys
Is the Yankees vs. Red Sox doubleheader on TV today? (9/14/23) FREE live stream, time, TV, channel for Game 1 on Prime
Brattleboro man honored at Red Sox EMS Night, Community News
MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald
Red Sox kicks off plan to bring all BPS 6th graders to Fenway Park
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images