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Red Sox, MassMutual Partner Up
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Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Houston Astros reveal Oxy as first ever jersey partner - SportsPro
Houston Astros reveal Oxy as first ever jersey partner - SportsPro
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
For the first time, historic Boston Red Sox jersey will have a sponsor patch