Derek Watt Autographed/Signed College Style White XL Jersey Beckett 39783 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a custom pro style White XL jersey with sewn on name and numbers that was personally autographed by Derek Watt. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.