MassMutual will be the first sponsor to have its logo on Red Sox
Boston Red Sox confirm MassMutual as signature sponsor - SportsPro
Official Charity of the Boston Red Sox Red Sox Foundation - Red Sox Foundation
News: CMO of the Week: MassMutual's Jennifer Halloran
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Take us out to the ballgame - BOStoday
Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox
Jennifer Halloran posted on LinkedIn
Red Sox Reportedly Strike $170M Jersey Patch Deal
Larger-Than-Life Drone Show Celebrates MassMutual's Sponsorship of the Boston Red Sox
MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald
