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

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

Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports

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

Surprising Red Sox Infielder Making Most Of Opportunity So Far In Spring Training - Sports Illustrated Inside The Red Sox

MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)

Cardinals beat Red Sox 4-3 as Kenley Jansen blows 9th inning lead for 2nd straight day

FIRST LOOK: sponsor patches on 2023 MLB jerseys

Baseball looks a little uglier but business is booming - The Hustle