MassMutual is first jersey patch sponsor of the Red Sox

Red Sox play ball with a new signature sponsor - BOStoday

MLB's Detroit Tigers expand Meijer sponsorship with jersey patch deal

Why MassMutual invested in a jersey sponsorship with the Red Sox

Red Sox will have MassMutual logo on their jerseys beginning in 2023 – Blogging the Red Sox

MassMutual will be the first sponsor to have its logo on Red Sox uniforms - The Boston Globe

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. /

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

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

MLB Jersey Patch Market Warming Up As Season Approaches