Mancini has expressed his interest in Aguero should his Argentina team-mate Carlos Tevez get his wish and move away from Eastlands.
Aguero has said a move to England would be of interest to him, with Chelsea also having been linked to the 23-year-old Atletico man.
Tevez has told City he wants to leave in order to spend more time with his children, although the club are understood to want in the region of ?50million for him. Brazilian side Corinthians have had a bid of ?40million turned down for the Argentinian, and their president Andres Sanchez said Italian side Juventus had made an even bigger offer for the player.
Mancini has already given thought to the role Aguero could play at City, and told Sky Sports News: "Aguero is a player that can play for Manchester City because he is young and he is a good player like Carlos. He can score a lot of goals and can play with Mario (Balotelli), with Edin (Dzeko)... it could be (that he joins)."
Aguero has also been linked with a move to Atletico's city rivals Real Madrid, as well as Juventus.
Arsenal midfielder Nasri was also confirmed as a target for Mancini, and he is hopeful he could tie up a deal for the Frenchman "before the end of the month".
Nasri has one year left on his contract with the Gunners and has been linked with a move away from the Emirates Stadium.
Mancini added: "Samir is under contract with Arsenal. Also for Samir it depends on many things."
Asked if an offer has been made for Nasri, Mancini continued: "I don't know in this moment, I don't know the situation but for Nasri it is difficult.
"I hope that we can buy because we need other players, and I hope that this player can arrive before the end of the month."
Source: Team Talk
Source: Team Talk