MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

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Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images

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MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball

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MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe