#Broncos injury update: C Steve Vallos has been ruled out with a concussion. #DENvsHOU
— Denver Broncos (@Broncos) December 22, 2013
Vallos was plastered on a block during a kickoff return. He joins Von Miller on the sidelines. Miller left the game with a right knee injury and was ruled out rather quickly.
The Broncos now only have Winston Justice on the bench as a reserve offensive lineman.