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MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
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MassMutual, Red Sox announce multiyear partnership
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MLB Sponsor Revenue Hits $1.2B as Jersey Patch Boom Awaits
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Red Sox uniforms will be unaffected by new MLB rules in 2023
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MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph
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Chris Cotillo on X: MassMutual is the new “signature partner” of
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Red Sox reveal first-ever uniform advertisements; MassMutual
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jerseys – Blogging the Red Sox
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Boston Red Sox Announce MassMutual Patch on Jerseys Starting in
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Iconic Massachusetts Brands Unite: MassMutual Named Signature
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MLB Jersey Patch Market Warming Up As Season Approaches