Red Sox MassMutual (2 versions). This is an advertising patch. The Red Sox have two versions of this patch. One is navy with white writing and the
Gross: Red Sox Reveal Uni Advertisement for 2023
Red Sox reach $170 million jersey-patch deal, Mets also interested
BLUE Mass Mutal Sublimation Patch Boston Red Sox baseball jersey patch MassMutal
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Milwaukee Brewers Announce Teams 1st Jersey Patch And How They Will Spend The Profit
Boston Red Sox make history with record $170 million ad-patch deal, other teams to follow suit
MassMutual is first jersey patch sponsor of the Red Sox
MLB uniforms will have advertising beginning in the 2023 season - The Boston Globe
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Hot Stove #229 – Rooting for Laundry – Seinfeld and Logoland