Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Ten-year partnership sees the insurer become the MLB team's first jersey patch partner.

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

MassMutual becomes 'signature sponsor' for Boston Red Sox

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

The MassMutual jersey patch is displayed during a Boston Red Sox News Photo - Getty Images

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

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

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

The MassMutual jersey patch is displayed during a Boston Red Sox News Photo - Getty Images

The MassMutual jersey patch is displayed during a Boston Red Sox News Photo - Getty Images

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

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Red Sox improve to 5-1 vs. Yankees thanks to Brayan Bello