Luke Kuechly, LB, Carolina: The league's highest-paid middle linebacker suffered a concussion on a fairly basic tackle against T.J. Yeldon. He wobbled as he got up and then dropped back to the ground again.
Lorenzo Mauldin, LB, Jets: The rookie was carted off because of head and neck injuries, his body strapped to a board.
Antonio Cromartie, CB, Jets: Departed because of an injured left knee that buckled on a noncontact play.
Sam Barrington, LB, Packers: Starter was lost to an ankle injury suffered early on.
Josh McCown, QB, Browns: Suffered a concussion and was replaced by Johnny Manziel.
Derek Carr, QB, Raiders: Forced out by a hand injury.
T.Y. Hilton, WR, Colts: Left because of a knee injury.
Andre Ellington, RB, Cardinals: Carted off because of a right knee injury.
DeSean Jackson, WR, Redskins: Hurt his left hamstring in the first quarter.