Up for sale is a highly sought-after 1984 O-Pee-Chee #8 Don Mattingly rookie trading card. This card has recently been graded by Professional Sports Authenticator (PSA) and comes straight from a pack that I have owned for over 30 years. It features the New York Yankees player and is a must-have for any baseball fan or collector. The card is from the 1984 season and is perfect for adding to your collection or as an investment piece. Get your hands on this rare gem today!