The Saints sent Harris back to their practice squad Friday.
New Orleans elevated Harris to the active roster prior to Thursday's loss to Arizona, and he played 62 of 66 defensive snaps, finishing with six tackles and a forced fumble. Marshon Lattimore (abdomen), Paulson Adebo (knee) and Bradley Roby (ankle) are all dealing with injuries, so Harris may be needed again next Sunday when the Saints take on Las Vegas.