ALLEN PARK, Mich. — 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.”After spending Friday night in an Atlanta hospital following the exhibition game against the Falcons that ended early, Norris flew back to Detroit on Saturday and returned to the Lions’ facility on Sunday.“It was great, everybody was fired up to see him. It’s a breath of fresh air,” Campbell said. “It’s hard when something like that happens and you don’t know. I can’t tell you the number of times I’ve seen guys with concussions knocked out — I’ve had them myself — but when you have these and then you don’t know. You know they’re breathing, but you don’t know anything else. And they’re gone. It’s just different, it’s a little different because you’re trying to block that out, but it’s still there.”Norris said in a social post Saturday that he was OK and thanked people for their support. He was hospitalized in stable condition late Friday after being attended to for about 20 minutes by medical personnel at Mercedes-Benz Stadium.The 24-year-old Norris was hurt with 14:50 left in the game after hitting Falcons running back Nathan Carter. He hit Carter with his facemask facing the running …