Kershaw became part of an exclusive club against the Chicago White Sox on July 2, becoming one of just 20 pitchers - and only four left-handers - to reach 3,000 MLB strikeouts. Topps released the card after Kershaw reached milestone, and made it available for purchase for a limited time.
Many collectors are looking to diversify their collections or discover emerging categories before they reach the level of demand we're seeing with Pokémon. While rare Pokémon cards are selling for millions in some instances, its competitors are catching on as collectors look for their next up-and-coming investment.