MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Red Sox, MassMutual Partner Up
Red Sox reach $170 million jersey-patch deal, Mets also interested
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
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Brewers sign former Red Sox outfielder Raimel Tapia
jerseys – Blogging the Red Sox
MassMutual is first jersey patch sponsor of the Red Sox
MassMutual logo patches
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
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 to sport MassMutual logo under new partnership - Boston Business Journal
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Kiké Hernandez isn't a fan of the Red Sox's new ad patch
MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald