MassMutual is first jersey patch sponsor of the Red Sox

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023

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

MLB Jersey Patch Market Warming Up As Season Approaches

Detroit Tigers to add Meijer patch on jerseys

MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster

MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald

Red Sox reportedly sign jersey patch deal with MassMutual

I'm glad the Phillies didn't put sponsors on their jerseys. It looks so cheap. : r/phillies

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal

Navy MassMutual patch. -White MassMutual patch. The white patch will be worn on the alternate navy jersey. The navy patch will be worn on all other

(2) 2023 Boston Red Sox MassMutual Advertising Jersey Patch