MassMutual is first jersey patch sponsor of the Red Sox

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

Red Sox Reportedly Strike $170M Jersey Patch Deal

MLB Jersey Patch Market Warming Up As Season Approaches

MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald

Iconic Massachusetts Brands Unite: MassMutual Named Signature Partner and First Ever Jersey Patch Sponsor of the Boston Red Sox

MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

St. Louis Cardinals land Stifel as first jersey patch sponsor

Boston Red Sox confirm MassMutual as signature sponsor - SportsPro