MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
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Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
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For the first time, historic Boston Red Sox jersey will have a sponsor patch
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
It's come to this: our Red Sox as human billboards
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