MassMutual is first jersey patch sponsor of the Red Sox

Logos and uniforms of the Boston Red Sox - Wikipedia

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Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox

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

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

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News

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

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

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

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. /

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News

The Future Of Jersey Sponsorships Across US Sports Leagues

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News