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

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

Red Sox reach $170 million jersey-patch deal, Mets also interested

jerseys – Blogging the Red Sox

MassMutual is first jersey patch sponsor of the Red Sox

MassMutual is first jersey patch sponsor of the Red Sox

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

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

Boston Red Sox's Narciso Crook talks growing up in Trenton, his favorite local eateries, and the secrets of his success – Trenton Journal

Red Sox Mass Mutual Collaboration – NBC Boston

Red Sox play ball with a new signature sponsor - BOStoday