The MassMutual jersey patch is displayed during a Boston Red Sox

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

What MLB teams will have uniform ad patches in 2023?

MassMutual is first jersey patch sponsor of the Red Sox

Red Sox reportedly strike $170M jersey patch deal - MarketWatch

Batter Up, Brands: MLB Jersey Patch Deals are Changing the Game for Sponsors - SponsorUnited

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

Red Sox Mass Mutual Collaboration – NBC Boston

Boston Red Sox make history with record $170 million ad-patch deal, other teams to follow suit

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