MassMutual is first jersey patch sponsor of the Red Sox

The Future Of Jersey Sponsorships Across US Sports Leagues

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

Phillies may have sponsored uniform patch this season

Jersey patch ads could be coming for Yankees, Mets in the near future

Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News

L.A. Angels have new MLB jersey patch sponsorship

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

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

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