Mike Alstott Autographed/Signed Pro Style Red XL Jersey SB Champs Beckett 39144 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 red XL jersey with sewn on name and numbers that was personally autographed by Mike Alstott with SB Champs inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.