Pierre Thomas out again for Saints

New Orleans Saints running back Pierre Thomas has been scratched from Sunday's game against the Arizona Cardinals because of an ankle injury.

Thomas also missed last week's game against Atlanta.

Also ruled out for the Saints are running back Reggie Bush (fibula) and cornerback Tracy Porter (knee).

Defensive end Will Smith (groin), safety Roman Harper (hamstring) and safety Pierson Prioleau (chest) were limited in Friday's practice. They are questionable and won't know until game time whethert they will be able to play.

John Clayton is a senior NFL writer for ESPN.com.