Wenger has confirmed the club are still trying to extend the French midfielder’s contract.
Nasri only has 12 months left on his current contract at Arsenal and has been strongly linked with a move to United.
“One thing’s for sure: we’re not selling him to Manchester United,” Wenger told the French radio station RTL.
“Are we still in discussions with Nasri? Yes, but we are still in disagreement over the financial contract on offer, which we haven’t settled.
“We are trying to extend his deal.”
