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

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

It's come to this: our Red Sox as human billboards

MassMutual logo patches

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

NHL Partner MassMutual to Debut 'On and Off the Ice' Spot During Winter Classic

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

jerseys – Blogging the Red Sox

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox

Red Sox to sport MassMutual logo under new partnership - Boston Business Journal

Red Sox, MassMutual Partner Up

Red Sox to sport MassMutual logo under new partnership - Boston Business Journal

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo

Red Sox drop series finale to Dodgers

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe