MassMutual is first jersey patch sponsor of the Red Sox

OTM Open Thread 12/1: It is Thursday - Over the Monster

Cleveland Guardians to wear Marathon jersey patch

Red Sox Mass Mutual Collaboration – NBC Boston

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

Ken Madsen on LinkedIn: Great spending the day at the “New Balance” headquarters in Boston…

Chris Cotillo on X: MassMutual is the new “signature partner” of the Red Sox. They get a jersey patch and the sign that replaces the John Hancock sign in center field. /

MassMutual, Red Sox announce multiyear partnership

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

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

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

Red Sox accidentally picked Yankees fan to sponsor jerseys for next decade