There has been no real announcement that Nasri wants to leave the club. And in terms of selling to a rival, Arsenal asked for 25mil instead of the 20mil manure offered, which is fair enough. Although, I question if SAF really had any intent on signing him rather than just a plot to unsettle the player further. And Wenger is on the last year of his contract, so he will need to pull something out of the bag this season.