The Eastlands outfit are believed to be preparing a big-money bid for the German international's services after the end of the Premier League and Bundesliga seasons.
Mancini, who has vowed to bring in fresh faces despite question marks over his own future, believes Boateng's versatility will prove very useful.
He told the Manchester Evening News: "We are quite close to signing him.
"Boateng is a good player, a young player and strong. He plays for the national team and there is a good chance to get him.
"He can play three different positions; central defence, right full-back or in midfield. If we find a player like that it is better for us."
Mancini, who has vowed to bring in fresh faces despite question marks over his own future, believes Boateng's versatility will prove very useful.
He told the Manchester Evening News: "We are quite close to signing him.
"Boateng is a good player, a young player and strong. He plays for the national team and there is a good chance to get him.
"He can play three different positions; central defence, right full-back or in midfield. If we find a player like that it is better for us."
