MassMutual is first jersey patch sponsor of the Red Sox

St. Louis Cardinals land Stifel as first jersey patch sponsor

Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal

Why are the Angels wearing jersey patches with 'FBM' on them? - Los Angeles Times

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

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Boston Red Sox and Springfield-based life insurer, MassMutual partner up

MLB Opening Day: Jersey Patches - Foul Or Fair Game?

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

Posts - Baseball

Red Sox reveal 2023 uniform change

Astros agree to deal to add Oxy jersey patch for 2023 season

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MLB Sponsor Revenue Hits $1.2B as Jersey Patch Boom Awaits –

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