His representative has claimed that he is not adverse to the idea of a move away from Stadio San Paolo.
"He feels good at Napoli, but he has the ability to attract the attention of any top clubs in Europe," Massimo Briaschi told reporters.
"There are no problems with the club. He has a good relationship with Mazzarri, with the city and with the fans.
"But it is clear that if a good offer came in, we would take it into consideration."