MassMutual is first jersey patch sponsor of the Red Sox

Colorful jerseys here to stay: Red Sox president says team not planning future uniform changes, Sports

A $17 million annual deal by the Red Sox stokes debate on the value of jersey patches in a market flooded with options

3,551 Shirt Sponsor Stock Photos, High-Res Pictures, and Images - Getty Images

Red Sox reportedly sign jersey patch deal with MassMutual

jerseys – Blogging the Red Sox

MassMutual, Red Sox announce multiyear partnership

Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal

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

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

MLB Teams with Jersey Patch Sponsors for the 2023 Season - Zoomph

Red Sox Mass Mutual Collaboration – NBC Boston

John Hancock ending long-held Boston Red Sox sponsorship