Sammy Sosa Autographed 1990 Upper Deck Rookie Card #17 Chicago White Sox Auto Grade Gem Mint 10 "Slammin Sammy" Beckett BAS 192905

This 1990 Upper Deck Rookie Card #17 features Sammy Sosa's hand-signed autograph, graded Gem Mint 10 by Beckett BAS. The card includes the inscription "Slammin Sammy," adding personal flair to this collectible item. Authenticated by Beckett Authentication Services (BAS), the card is securely encapsulated in a tamper-proof holder, ensuring its preservation and authenticity. This rare piece combines the appeal of a rookie card with a pristine signature from the legendary baseball player, making it a prized addition to any sports memorabilia collection.