Mancini has indentified Atletico Madrid ace Aguero as an ideal replacement for unsettled star Carlos Tevez and he is also keen on luring Nasri away from Arsenal.
Aguero is looking for a new club after revealing his intention to leave Atletico this summer with the player planning to make a decision on his future after the Copa America.
Hit-man: Sergio Aguero has been in fine form for Argentina at the Copa America
The 23-year-old has admitted he would be happy to join another Spanish club or move to England with Real Madrid also in the race for his signature.
Mancini is an admirer of Aguero and he believes the Argentine would be a success in the City team if they land him.
'At the moment I am waiting because if we lose Carlos, Aguero is a player that can play for Manchester City because he is young, because heis a good player like Carlos, he can score a lot of goals and can play with Mario (Balotelli), with Edin (Dzeko),' Mancini told Sky Sports News.
Asked if City were likely to make a bid for Aguero, Mancini said: 'It is probably yes. I think in this moment we only have to wait'.
Patient: Mancini (centre) is waiting on Carlos Tevez's (below right) future to be resolved
Meanwhile, Corinthians have made an improved ?40million offer for Tevez and set a weekend take-it-or-leave-it deadline.
City, who insist they will not take a penny less than ?50m, have already rejected a ?37m bid from the Brazilians.
Nasri is also a top target for Mancini with the Frenchman stalling over a new contract at Arsenal.
The former Marseille man is entering the final year of his contract at Arsenal and although Arsene Wenger claims the midfielder will stay, Mancini hopes he can bring him to Manchester.
Moving on? Samir Nasri is involved in Arsenal's pre-season tour of the Far East
'Samir is under contract with Arsenal. Also for Samir it depends on many things,' added Mancini.
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.'
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Source: Daily Mail
Source: Daily Mail