According to Allegri's description, Mister X has good feet, thick hair, strong physique and is 1.85 metres tall. The names were Hamsik, Witsel and, most of all, Bale.
As far as the role is concerned, there is another player who is similar to the Welsh of Tottenham: Juan Manuel Vargas. The 27 years old Peruvian player of Fiorentina fits with Allegri's description, but he has got a EU passport. However, this is not a problem given the fact that the player is playing in Italy already.
A possible negotiation with Fiorentina woul be made easier if Cassano is included. He could find more space in Mihajlovic's squad, and this would be key for his participation to Euro2012.