Keenum (concussion) is listed as questionable for Sunday's game against the Cardinals, Nick Wagoner of ESPN.com reports.
Head coach Jeff Fisher named Nick Foles the starting quarterback, so the only real question remaining is whether Keenum or Sean Mannion will serve as the backup. Either way, Keenum can be ignored this week, though it won't be surprising if he makes another start before the end of the season.