The 2024 Panini Caitlin Clark Collection -Panini Exclusive. Reigning 3's Caitlin Clark #R1 (RC) is a standard-sized sports trading card featuring basketball player Caitlin Clark from the Iowa Hawkeyes. This original card is part of the Panini Caitlin Clark Collection set and is graded 8.5 by Sportscard Guaranty Corporation (SGC). It is a rookie insert card made of card stock and falls under the Reigning 3's insert set, making it a valuable addition for collectors of National Collegiate Athletic Association (NCAA) basketball trading cards.