Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

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Boston Red Sox top prospect Marcelo Mayer belts first professional homer, drives in four runs in FCL game

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Houston Astros reveal Oxy as first ever jersey partner - SportsPro

Red Sox reach $170 million jersey-patch deal, Mets also interested

The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News

Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe

Hc 011516 by The Island 360 - Issuu

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