McKnight, who has been recovering from a head injury, took a knee three times as he made his way onto the field Monday and was examined by trainers. Wearing a red no-contact jersey, he was participating in a drill when he went down again. Trainers rushed over to examine McKnight, who has also dealt with dehydration issues all camp, before walking him to a medical tent.
McKnight was examined for several minutes before being carted away. He was wearing an oxygen mask as he walked on his own into the locker room, while a trainer held the tank.
Source: Associated Press