The Guardian is reporting (here) that the sale has been made for more than 22 million pounds (a good piece of business for Arsenal, who bought Nasri a few years ago for under 16 million. The move has long been expected, despite recent reports that negotiations had stalled. Nasri, who played well in Arsenal's 2-0 loss at home to Liverpool this past weekend, will now travel to Man City shortly for a physical and to negotiate personal terms.
Although expected, Nasri's move is yet another blow to an Arsenal side that is already undermanned and under-experienced. A loss at Udinese this week could see Arsenal fail to qualify, for the first time, for the Champion's League, resulting in a huge loss of revenue. Regardless of what happens in Italy, it's important for Arsenal fans to support the team and Arsene Wenger (even as we call for him to loosen the purse strings). This year's squad is not, and will not be, championship quality. Arsenal are once again, although unintentionally this time (due to the departures of Fabregas and Nasri), in a rebuilding phase, as when Fabregas first took up the mantle after the "Invincibles" team was disbanded. A top-four finish in the Premiership would be a great achievement.