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MassMutual will be the first sponsor to have its logo on Red Sox
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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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Sox say so long to John Hancock. But hello maybe to MassMutual
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MassMutual, Red Sox announce multiyear partnership
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Red Sox to sport MassMutual logo under new partnership - Boston
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MassMutual becomes 'signature sponsor' for Boston Red Sox
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It's come to this: our Red Sox as human billboards
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Boston Red Sox bag US$170m MassMutual jersey patch deal, says
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