Former Ajax star Kenneth Perez, who knows all about life in Dutch football, has told Dit was het Weekend of how good Tillman can become: “Arne Slot always says at Feyenoord that his players must first learn to work hard and apply pressure. If Tillman also learns that at PSV, then they have really made a good move. That £12 million will soon become £120 million. I really thought he was great, especially in the second part of the season, in everything actually. Even in defending, which he has become very good at. He's the best player at the club and there is much more to come from him.”