Alex Smith took two blows to the head and was pulled from the game.
The Chiefs lost two key offensive players due to injury in Sunday’s game against the Colts.
Alex Smith was concussed in the third quarter when his head collided with the turf. He left the game in the first quarter for a concussion test but passed it and returned to the game. Starting running back Spencer Ware also sustained a concussion.
NFL sack leader Lorenzo Alexander left the Bills’ game against the Patriots with a hamstring injury and did not return.
A full list of injuries we’re tracking is below.
Alex Smith, Chiefs — Concussion, out
Nick Foles replaced Smith after he was injured.
Spencer Ware, Chiefs — Concussion, out
Charcandrick West saw an increased workload after Ware was injured.
Lorenzo Alexander, Bills — Hamstring, out
This is Alexander’s first season with the Bills. He leads the league with nine sacks.
T.Y. Hilton, Colts — Hamstring, returned
Hilton was sidelined briefly by a hamstring injury but returned to the game.
Devontae Booker, Broncos — Shoulder, questionable
He was starting in place of the injured C.J. Anderson. Denver is down to third-stringer Kapri Bibbs.
Tyrann Mathieu, Cardinals — Shoulder, out
Mathieu injured his shoulder against the Panthers and did not return to the game.
Barry Church, Cowboys — Arm, out
Cowboys safety suffered an arm injury in the second half vs. Eagles and did not return.
Morris Claiborne, Cowboys — Groin, out
Claiborne injured his groin injury late in Cowboys win against the Eagles.