MassMutual, Red Sox announce multiyear partnership

sam kennedy – Blogging the Red Sox

Red Sox - MassMutual

MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster

Milwaukee Brewers Announce Teams 1st Jersey Patch And How They Will Spend The Profit

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

ANC

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

Sustainability and Inclusion MassMutual 2022 Annual Report

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