MassMutual is first jersey patch sponsor of the Red Sox
Fans upset as Yankees add corporate sponsor patch to jerseys
New MLB deal brings sponsor patches to player uniforms for the first time
Cleveland Guardians to wear Marathon patch on jerseys
Five Tampa Bay Rays players decline to wear Pride logos on jerseys and caps. : NPR
Marathon Patch Will Appear on Jersey of MLB's Cleveland Guardians
Padres 1st MLB team to reach uniform ad deal, with Motorola - NBC Sports
First-ever MLB jersey patch sponsor deal snaps status quo - La Prensa Latina Media
Twins making careful decision about ad patches on players' jerseys
Yankees Hire Legends for Jersey Patch Sponsor Search –
Report: Phillies remove sleeve numbers to make way for jersey ad
MLB Brand Value Grows with Jersey Patches on Horizon
What MLB teams will have uniform ad patches in 2023?