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

Red Sox Reportedly Strike $170M Jersey Patch Deal

MassMutual will be the first sponsor to have its logo on Red Sox

John Hancock ending long-held Boston Red Sox sponsorship

Official Charity of the Boston Red Sox

Iconic Massachusetts Brands Unite: MassMutual Named Signature

Final Red Sox homestand of the year is one of lasts – Boston 25 News

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MassMutual is first jersey patch sponsor of the Red Sox

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

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