MassMutual, Red Sox announce multiyear partnership
Red Sox reportedly strike $170M jersey patch deal - MarketWatch
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Logos and uniforms of the Boston Red Sox - Wikipedia
Twins making careful decision about ad patches on players' jerseys
Boston Red Sox Sign Long-Term Jersey Sponsor - Ministry of Sport
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
MassMutual is first jersey patch sponsor of the Red Sox
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro