MassMutual is first jersey patch sponsor of the Red Sox
What MLB teams will have uniform ad patches in 2023?
Red Sox reportedly sign jersey patch deal with MassMutual
The Boston Red Sox announced a major off-the-field partnership with MassMutual – Boston 25 News
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John Hancock ending long-held Boston Red Sox sponsorship
MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball
Crazy Quilt: Jersey Sponsorships Result in Patchwork of Deals - TicketManager
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Why MassMutual invested in a jersey sponsorship with the Red Sox
Twins making careful decision about ad patches on players' jerseys
Red Sox Reportedly Strike $170M Jersey Patch Deal
MLB's announced jersey patch deals so far-San Diego Padres: Motorola. Boston Red Sox: MassMutual. Los Angeles Angels: Foundation Building Materials. Arizona Diamondbacks: Avnet : r/baseball
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro