MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

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

Red Sox Mass Mutual Collaboration – NBC Boston

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

Devers breaks tie in 6-run 8th, Red Sox beat Reds 8-2 to avoid sweep

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

A rough patch: the Astros' new sponsorship deal with Oxy is doubly ugly, Houston Astros

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

Milliken's Red Sox recap - Mariners 10, Red Sox 1

It's come to this: our Red Sox as human billboards

John Hancock ending long-held Boston Red Sox sponsorship

Final Red Sox homestand of the year is one of lasts – Boston 25 News

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