New York Yankees add insurance company logo patch to iconic uniforms

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

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

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Yankees] (Unveiling of new uniform advertisement sponsor) : r/baseball

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New York Yankees add insurance company logo patch to iconic uniforms

NYSportsJournalism.com - NY Yankees Sign $220M Partner, Jersey Patch Deal - Yankees Sign $200M Signature Partner, Sleeve Patch Deal With Starr Insurance

MassMutual is first jersey patch sponsor of the Red Sox

Yankees] (Unveiling of new uniform advertisement sponsor) : r/baseball