Mark Brothers VIP Autograph Signing at Sinbad Sports. This dual jersey features embroidered players number on jersey front; embroidered "Marks Brothers" and numbers on jersey back. Mark Clayton and Duper signed this jersey on the player number on the back with a black sharpie. These are custom Jersey ready to frame it. Size XL. Color teal. Shop with confidence as this product has been authenticated by JSA and comes with numbered decal.