Knight (concussion) did not practice Wednesday, Theo Mackie of The Arizona Republic reports.
Knight is in concussion protocol after playing just 18 offensive snaps in last Sunday's overtime win over the Cowboys. With Jeremiyah Love (ankle) headed to injured reserve and out for at least the next four weeks, Knight figures to have a key backfield role alongside Tyler Allgeier, but it might be a challenge for Knight to gain clearance for Sunday's game against Seattle.