ALLEN PARK, Mich. (AP) — Detroit Lions safety Morice Norris, who was taken off the field in an ambulance late in a preseason game last week, is in concussion protocol and doing well, coach Dan Campbell said Monday.

Lions safety Morice Norris returned to the team's facility on Sunday, two days after he was taken off the field in an ambulance following a scary hit during a preseason game against the Falcons, according The Associated Press .