Beck (back) is inactive but will serve as the emergency third quarterback against the Broncos on Sunday, Darren Urban of the Cardinals' official site reports.
Beck was unable to practice Thursday and Friday due to back spasms. He's inactive for Sunday's contest, but as the emergency third quarterback, he would be allowed to play in the event that both Jacoby Brissett and Gardner Minshew left the game due to injury, illness or ejection.