Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Boston Red Sox top prospect Marcelo Mayer belts first professional homer, drives in four runs in FCL game
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Boston Red Sox land a 10-year partnership with MassMutual
Houston Astros reveal Oxy as first ever jersey partner - SportsPro
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Houston Astros reveal Oxy as first ever jersey partner - SportsPro