Red Sox notebook: Casas ruffled feathers with pregame routine, learned valuable lesson in process
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Yankees Sign MLB's Richest Jersey Patch Deal at $25M a Year
Why MassMutual invested in a jersey sponsorship with the Red Sox
Twins making careful decision about ad patches on players' jerseys
Why MassMutual invested in a jersey sponsorship with the Red Sox
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
FOS PM: Google Bids on Sunday Ticket - Front Office Sports
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Boston Red Sox, Major League Baseball, News, Scores, Highlights, Injuries, Stats, Standings, and Rumors
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Red Sox reportedly sign jersey patch deal with MassMutual