MassMutual will be the first sponsor to have its logo on Red Sox

FIRST LOOK: sponsor patches on 2023 MLB jerseys

Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /

Yankees Jersey Patch Deal Is MLB's Richest at $25M a Year –

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

Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports

jerseys – Blogging the Red Sox

Red Sox Reportedly Strike $170M Jersey Patch Deal

Red Sox Winter Weekend

MLB Jerseys' to Feature Corporate Sponsor Logos for First Time Ever In 2023

MassMutual becomes 'signature sponsor' for Boston Red Sox

Legendary MLB teams break marketing ground with insurance sponsors - Insurance News

Red Sox reaping benefits from one 2022 trade, Chaim Bloom's 'outstanding job'