John Stockton and Karl Malone have both autographed this official Utah M&N jersey. Size XL name and numbers sewn on. Stockton and Malone have always been TOUGH autographs. Autograph for Stockton was witnessed and authenticated by Beckett Authentication Services (BAS). Simply scan the QR code hologram on your item to verify authenticity on their site. 100% authentic. Malone was witnessed and authenticated by James Spence Authenticaiton (JSA). Simply type the hologram on your item into the JSA site to verify authenticity. 100% authentic.