Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe
NYSportsJournalism.com - Home
Gn 011516 by The Island 360 - Issuu
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
MassMutual, Red Sox announce multiyear partnership
Red Sox to sport MassMutual logo under new partnership - Boston Business Journal
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Boston Red Sox Archives - SportsPro
Houston Astros reveal Oxy as first ever jersey partner - SportsPro