The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News
MassMutual is first jersey patch sponsor of the Red Sox
Red Sox kicks off plan to bring all BPS 6th graders to Fenway Park
Gallery: Sox lose again to the Yankees 5-3 – Boston Herald
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Red Sox to sport MassMutual logo under new partnership - Boston
SBJ Closing Bell: Red Sox officially sign MassMutual as patch sponsor
Boston Red Sox Boston 25 Sports – Boston 25 News
Now in centerfield at Fenway Park!