With discussions between the two clubs believed to have been going on for some time, it had been expected Nasri might be confirmed as a City player this week.
No such announcement has been made as yet, but Mancini - whose side face Bolton in the Barclays Premier League on Sunday - wants to see the transfer wrapped up swiftly.
"I hope we can close it very quickly now, but I don't know the last news about him because my concentration is on the game," Mancini said.
"But I hope - also because the market finishes in the next 10 days."
Source: PA
Source: PA