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

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo

Red Sox Reportedly Strike $170M Jersey Patch Deal

Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro

Why MassMutual invested in a jersey sponsorship with the Red Sox

MassMutual logo patches

Red Sox Winter Weekend

John Henry, Chaim Bloom receive frigid reception at Red Sox Winter Weekend, Red Sox

MLB Jersey Patch Market Warming Up As Season Approaches

MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal

MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph

Cleveland Guardians Announce Jersey Sponsorship - Sports Illustrated Cleveland Guardians News, Analysis and More

Red Sox reach $170 million jersey-patch deal, Mets also interested

Kiké Hernandez isn't a fan of the Red Sox's new ad patch