MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Red Sox, MassMutual near a $17M jersey patch deal - Boston
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Sox say so long to John Hancock. But hello maybe to MassMutual
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UniWatch] Gross: Red Sox Reveal Uniform Advertisement for 2023 : r
Boston Red Sox and Springfield-based life insurer, MassMutual
Official Charity of the Boston Red Sox
Boston Red Sox bag US$170m MassMutual jersey patch deal, says
MassMutual lands deal for patch on Red Sox uniforms; Springfield
It's come to this: our Red Sox as human billboards