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Sox say so long to John Hancock. But hello maybe to MassMutual
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Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
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John Hancock ending longtime partnership with Boston Red Sox
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Red Sox debut new uniform advertisements as part of 10-year deal
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Boston Red Sox make history with record $170 million ad-patch deal
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MassMutual will be the first sponsor to have its logo on Red Sox
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Yankees get over $20 million a year for Starr Insurance patch
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The NFL's US$673m question: Will the league introduce jersey patch
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Here are the winners and losers of the baseball offseason - The
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MLB's Rangers hire CSM to find first jersey patch sponsor - Sportcal