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Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
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MassMutual, Red Sox announce multiyear partnership
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MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
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Devers, Turner lead Boston's HR derby; Red Sox top Cubs 8-3 for 6th straight win - The San Diego Union-Tribune
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Cardinals beat Red Sox 4-3 as Kenley Jansen blows 9th inning lead for 2nd straight day
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Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
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MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
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jerseys – Blogging the Red Sox
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MassMutual, Red Sox announce multiyear partnership