MassMutual is first jersey patch sponsor of the Red Sox

Red Sox to sport MassMutual logo under new partnership - Boston Business Journal

Boston Red Sox and Springfield-based life insurer, MassMutual partner up

Marlins, ADT announce jersey patch sponsorship - Fish Stripes

Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro

Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox

Red Sox, MassMutual Partner Up

St. Louis Cardinals land Stifel as first jersey patch sponsor

Red Sox to sport MassMutual logo under new partnership - Boston Business Journal

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal

Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox

Red Sox reportedly sign jersey patch deal with MassMutual

jerseys – Blogging the Red Sox

MORE