Pierce sustained the concussion in the Colts’ eventual Week 15 loss to the Denver Broncos, coming down hard on his backside while going up for a ball in the end zone. He entered concussion protocol that following Monday and remained there for the entire week, which kept him out of last week’s game against Tennessee.

DENVER — Colts deep threat Alec Pierce is being evaluated for a concussion after his head collided hard with the turf on a jump ball in the end zone at the end of Sunday’s first half against the Broncos.