Boston Red Sox confirm MassMutual as signature sponsor - SportsPro

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

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Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro

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

Red Sox Mass Mutual Collaboration – NBC Boston

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

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

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Rt 011516 by The Island 360 - Issuu

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

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe