Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

Houston Astros reveal Oxy as first ever jersey partner - SportsPro

Red Sox play ball with a new signature sponsor - BOStoday

NYSportsJournalism.com - Home

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

NYSportsJournalism.com - Home

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

20160115 xbs wit by The Island 360 - Issuu

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

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