Napoli sports chief Pierpaolo Marino has taunted Manchester United over their interest in his star Slovakia international, Marek Hamsik.

"Now, they're aware of the potential of this guy," laughed Marino. "But where were they when they had the chance to sign him last season from Brescia?"

Marino insists there's no chance of Napoli selling Hamsik, who along with United, has Real Madrid, Juventus and Barcelona all following his exciting progress.