Antwerp coach Mark van Bommel confirmed interest in the Belgian, who is reportedly valued at around €20 million (£17m/$21m), from top teams before his side faced Barcelona in the Champions League this season, telling reporters: "I am very happy that he has been playing with us all this time. It is incredible how he has improved in one year. Since he started playing he has been decisive. He is not only interesting for Barcelona but for all the teams."