Ja'Marr Chase Autographed/Signed Pro Style White XL Jersey BAS 40279 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 LSU Tigers white autographed jersey that was personally autographed by Ja'Marr Chase. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.