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

Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023

Logos and uniforms of the Boston Red Sox - Wikipedia

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

MassMutual logo patches

Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /

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

The Boston Red Sox announced a major off-the-field partnership with MassMutual

Red Sox reveal 2023 uniform change

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What MLB teams will have uniform ad patches in 2023?