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Red Sox play ball with a new signature sponsor - BOStoday
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MassMutual is first jersey patch sponsor of the Red Sox
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Boston Red Sox sign BetMGM as first betting sponsor
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Red Sox reportedly sign jersey patch deal with MassMutual
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Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
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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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MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
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Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
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The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News
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What MLB teams will have uniform ad patches in 2023?
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MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
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Red Sox reveal 2023 uniform change
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2) 2023 Boston Red Sox MassMutual Advertising Jersey Patch
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Red Sox to sport MassMutual logo under new partnership - Boston Business Journal