Red Sox accidentally picked Yankees fan to sponsor jerseys for
MLB's Red Sox land MassMutual as jersey patch sponsor - Sportcal
Iconic Massachusetts Brands Unite: MassMutual Named Signature
jerseys – Blogging the Red Sox
Yankees Announce Starr Insurance Jersey Patch, Partnership in
Red Sox Mass Mutual Collaboration – NBC Boston
MassMutual will be the first sponsor to have its logo on Red Sox
MassMutual logo patches
John Hancock ending long-held Boston Red Sox sponsorship
Red Sox reach $170 million jersey-patch deal, Mets also interested
Red Sox to sport MassMutual logo under new partnership - Boston
Red Sox will have MassMutual logo on their jerseys beginning in
MassMutual lands deal for patch on Red Sox uniforms; Springfield
Boston Red Sox make history with record $170 million ad-patch deal
MassMutual will be advertising on the Red Sox jersey in 2023