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

Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –

MassMutual is first jersey patch sponsor of the Red Sox

Official Charity of the Boston Red Sox Red Sox Foundation - Red Sox Foundation

Phillies may have sponsored uniform patch this season

Red Sox reveal 2023 uniform change

Red Sox kicks off plan to bring all BPS 6th graders to Fenway Park

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

Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images

Red Sox uniforms will be unaffected by new MLB rules in 2023

Legendary MLB teams break marketing ground with insurance sponsors - Insurance News

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

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