The Belgian, however, insists he's not pushing to quit Ajax.
"When the time is right, I'll change, but right now Ajax is the most important thing for me. I expect to play here after the winter break," he said.
"Ajax is a very good club. It will not be hard for me to play here all my life and if I have to choose between Ajax and another club, there are not many I'd leave for. But clubs like Arsenal and Tottenham are great clubs and they will be a step forward."