Mohammed Kudus was in action for Ajax in their 2-1 defeat to PSV Eindhoven in the Dutch Eredivisie on Sunday.
The Ghanaian international was handed a start in his preferred midfield position at the Johan Cruyff Arena as Alfred Schreuder’s side suffered their seventh defeat of the season in all competitions.
He was replaced by Klaassen in the 81st minute.
Luuk de Jong and Erick Gutiérrez were on target as the visitors produced a clinical display to take all three points from Amsterdam while Lorenzo Lucca grabbed a consolation goal for the hosts late in the game.
The results sees PSV overtake Ajax at the top of the league table.