JACKSON, Miss. — Saints running back Deuce McAllister has missed a practice, and coach Sean Payton says he is scheduled to have an MRI on his left knee.

McAllister had surgery to repair a torn anterior cruciate ligament in that knee last season.

Payton said it swelled up after Friday's practice and trainers had to drain fluid from it. McAllister sat out Saturday morning's practice.

Payton said doctors don't know if anything is wrong with the ligament but because of last year's surgery they want to be sure.