MassMutual is first jersey patch sponsor of the Red Sox

MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald

Check Out New Photos Of Red Sox Partnership Jersey Patch

Boston Red Sox mascots Wally and Tessie display the patch during a News Photo - Getty Images

Kiké Hernandez isn't a fan of the Red Sox's new ad patch

Astros agree to deal to add Oxy jersey patch for 2023 season

Sox say so long to John Hancock. But hello maybe to MassMutual. - The Boston Globe

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

MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)

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

Red Sox Mass Mutual Collaboration – NBC Boston