jerseys – Blogging the Red Sox
Red Sox debut new uniform advertisements as part of 10-year deal with MassMutual, Sports
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
MLB's new uniform rules won't prevent Red Sox from keeping Boston traditions – Boston Herald
Game One Hundred and Sixteen: Kansas City Royals at Boston Red Sox - Royals Review
MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe
Despite ominous start, both Chris Sale, Red Sox take positive steps in their works in progress - The Boston Globe
MassMutual will be advertising on the Red Sox jersey in 2023. - Over the Monster
Nick Pivetta's 10th K, 09/12/2023
Red Sox reveal first-ever uniform advertisements; MassMutual patches coming in 2023
Are There Ads On MLB Jerseys?