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

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

OTM Open Thread 12/5: It is Monday - Over the Monster

Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports

MassMutual becomes 'signature sponsor' for Boston Red Sox

Red Sox Sign Japanese Batting Champ Yoshida - Rafu Shimpo

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

Red Sox pitcher Chris Sale scheduled to make rehab stop in Syracuse

MassMutual logo patches

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

MLB Team Sponsorship Revenue Grew To $1.5 Billion In 2023, Report Shows

Red Sox play ball with a new signature sponsor - BOStoday

Boston Red Sox and Springfield-based life insurer, MassMutual partner up