Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports
Red Sox play ball with a new signature sponsor - BOStoday
St. Louis Cardinals land Stifel as first jersey patch sponsor
Phillies may have sponsored uniform patch this season
MLB Sponsor Revenue Hits $1.2B as Jersey Patch Boom Awaits –
Ken Madsen on LinkedIn: Great spending the day at the “New Balance” headquarters in Boston…
Red Sox will have MassMutual logo on their jerseys beginning in 2023
Twins making careful decision about ad patches on players' jerseys
Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox