Dan Campbell also revealed Trystan Colon is sidelined with elbow injury while Taylor Decker returns to practice from PUP list.

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. "We're going to take it nice and easy here to make sure he's good over the next 10 to 14 days and reassess," Campbell said. "That's good news."

When Falcons coach Raheem Morris explained the decision to end Friday night's preseason game after Lions safety Morice Norris suffered a potentially serious head/neck injury, Morris said he didn't know whether the league approved of the move.