Arsenal sold the Dutch forward to Manchester United as he approached the last 12 months of his contract at The Emirates.
Van Persie went on to fire the Red Devils to Premier League glory in Sir Alex Ferguson’s last season at Old Trafford.
And with Sanchez in an identical situation, Wenger has ruled out the chance of the Chilean leaving for a rival this summer and he’s backed the forward to sign a new deal.
The Arsenal boss has revealed the only reason he let Van Persie join United was that he was looking for a new contract at 30 years of age.
Wenger told The Sun: “I let Van Persie go in the last year of his contract because he was 29, going on 30 and he was signing a long-term contract.
“That is not the case with Alexis. I personally think he will sign and stay here.
"Even if he doesn’t sign a new deal, I will make him stay? Yes.
"Would I rather keep him than sell to a Premier League rival? Yes."
