Dak Prescott Autographed Adidas Right Cleat - JSA Witness Auth This is a Hand Autographed by Dak Prescott on an Adidas Football Cleat. This item has a James Spence Witness Authentication, which comes with a JSA # and a JSA COA. You can view this item on the SpenceLOA website. It was signed either at a public autograph appearance or a private signing. This is a stock photo of the item. Although you may not receive this exact item, the item you receive is virtually identical and brand new in great shape.