Red Sox, MassMutual Partner Up
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Twins making careful decision about ad patches on players' jerseys
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Red Sox kicks off plan to bring all BPS 6th graders to Fenway Park
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
jerseys – Blogging the Red Sox
Red Sox Foundation
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro