Roberto Mancini has admitted that they face a major battle to land Arsenal striker Robin van Persie.
The Manchester City boss has now confirmed his interest and City have asked Arsenal to keep them informed of developments.
But the Italian said: “When you talk about Manchester City, Manchester United and Juve, it is difficult for a player to choose between those three clubs.
“They are all top teams and I’ve no idea what will happen with him. If we have a chance to take him, we will try because we think he is a top striker.
“For now he is an Arsenal player and I think Arsenal are a top team. It is not easy for Van Persie and other players to leave them.”