MassMutual will be the first sponsor to have its logo on Red Sox
Boston Red Sox bag US$170m MassMutual jersey patch deal, says
MLB's Detroit Tigers expand Meijer sponsorship with jersey patch
Ken Madsen on LinkedIn: Great spending the day at the “New Balance
Why MassMutual invested in a jersey sponsorship with the Red Sox
It's come to this: our Red Sox as human billboards
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
What MLB teams will have uniform ad patches in 2023?
St. Louis Cardinals land Stifel as first jersey patch sponsor
Sox say so long to John Hancock. But hello maybe to MassMutual