Trapattoni has confirmed the shot-stopper is highly rated in Serie A and has discussed the situation with clubs in his homeland.
"We have already, myself and Marco (Tardelli), spoken with some Italian teams," said Trapattoni in the Irish Independent.
"In Italy, he is kept in high regard by many. But the goalkeeper is a difficult position.
"There is interest in them, and we have one or two teams who have goalkeepers inferior to them.
"But there are many situations in Italy, like in England. We can only inform them. We cannot force it.
"If he has the opportunity, maybe he will ask to leave City."