Why MassMutual invested in a jersey sponsorship with the Red Sox
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
MLB Jersey Patch Market Warming Up As Season Approaches
Detroit Tigers to add Meijer patch on jerseys
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Red Sox reportedly sign jersey patch deal with MassMutual
Marlins, ADT announce jersey patch sponsorship - Fish Stripes
Jersey patch ads could be coming for Yankees, Mets in the near future
The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News
MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)
Red Sox will have MassMutual logo on their jerseys beginning in 2023