The Morocco international endured an indifferent three-year spell with the Gunners before sealing a summer move to Selhurst Park.
He told The Guardian: "They're a team I always followed, a team I've loved, but that page has turned.
"Now it's important to feel wanted and to show what I can do, but I have nothing to prove to Arsenal. Nothing at all."
The encounter is scheduled to kick off at 4pm.