Sammy Sosa Autographed 1990 Donruss Rookie Card #489 Chicago White Sox Auto Grade Gem Mint 10 "Slammin Sammy" Beckett BAS Stock #192890

This is a 1990 Donruss Rookie Card #489 that has been hand signed by Sammy Sosa. The condition of the signature was graded a Gem Mint 10 by Beckett BAS. This item was inscribed "Slammin Sammy." It has been certified authentic by Beckett Authentication Services (BAS) and comes encapsulated in their tamper-proof holder.