MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
Red Sox, MassMutual near a $17M jersey patch deal - Boston Business Journal
Boston Red Sox make history with record $170 million ad-patch deal, other teams to follow suit
Red Sox Reportedly Strike $170M Jersey Patch Deal
Boston Red Sox bag US$170m MassMutual jersey patch deal, says report - SportsPro
MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
MassMutual lands deal for patch on Red Sox uniforms; Springfield company's deal with $17M yearly (report)
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
Women's locker room, new lighting, pitch clocks: Red Sox announce Fenway Park improvements – Boston 25 News
Boston Red Sox Announce MassMutual Patch on Jerseys Starting in 2023 – SportsLogos.Net News
The Uni Watch 2023 MLB Season Preview - by Paul Lukas
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal