The 1989 Ken Griffey Jr Upper Deck Baseball #1 Rookie Card is a highly sought-after trading card in the sports memorabilia market. This single card features the young baseball star during his rookie season with the Seattle Mariners, making it a valuable collectible for fans and collectors alike. With a PSA 9 MINT rating, this card is in excellent condition and showcases Griffey Jr in his early years in the Major League. As part of the 1989 Upper Deck set, this card captures a pivotal moment in baseball history and is a must-have for any sports memorabilia enthusiast.