Among players City have been linked with are Fernando Torres, Edin Dzeko, Zlatan Ibrahimovic and Forlan, though Mancini now appears to have ruled out a bid for the Uruguay striker who won the Golden Ball award for the best player at the World Cup.
He said: "Those that I am interested in are those that the newspapers are saying apart from Forlan.
"He's formidable and I was in love with him when he played at Villarreal four or five years ago.
"I would have taken him to Inter. Today instead I am looking for younger players."