MassMutual is first jersey patch sponsor of the Red Sox

Red Sox uniforms will be unaffected by new MLB rules in 2023

Red Sox Mass Mutual Collaboration – NBC Boston

Red Sox to sport MassMutual logo under new partnership - Boston Business Journal

Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox

MLB's Rangers hire CSM to find first jersey patch sponsor - Sportcal

Red Sox Reportedly Strike $170M Jersey Patch Deal

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

Check Out New Photos Of Red Sox Partnership Jersey Patch

Red Sox accidentally picked Yankees fan to sponsor jerseys for next decade

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