MassMutual is first jersey patch sponsor of the Red Sox

St. Louis Cardinals land Stifel as first jersey patch sponsor

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball

Red Sox will have MassMutual logo on their jerseys beginning in 2023

Yankees won't have jersey patch for Opening Day, but it's coming

Red Sox play ball with a new signature sponsor - BOStoday

Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /

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

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe