 His breakthrough came in the 2006–07 season, being one of Eredivisie's top scorers with 22, and reaching the Netherlands national football team, aged 28.He rejected a contract offer from AZ to extend his tenure at the club and his manager Louis van Gaal informed him that he would not be a first-team regular from then on with this resulting in his pushing for a move to another club.Late August 2007 Koevermans joined PSV Eindhoven for a fee of €6 million where he received the number 10 jersey, last worn by Ivorian striker Arouna Koné, who was sold to Sevilla FC.