For the first time, historic Boston Red Sox jersey will have a sponsor patch
Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
Red Sox play ball with a new signature sponsor - BOStoday
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Houston Astros reveal Oxy as first ever jersey partner - SportsPro
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
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Red Sox to sport MassMutual logo under new partnership - Boston Business Journal