Red Sox Mass Mutual Collaboration – NBC Boston
MLB Jersey Patch Market Warming Up As Season Approaches
John Hancock ending long-held Boston Red Sox sponsorship
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
MassMutual is first jersey patch sponsor of the Red Sox
MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
Red Sox accidentally picked Yankees fan to sponsor jerseys for next decade
MassMutual logo patches