ENGLEWOOD, Colo. -- Denver Broncos rookie quarterback Drew Lock will open the regular season on injured reserve as the Broncos moved through cut-down weekend on the hunt for a quarterback to back up Joe Flacco.
Lock, who was a second-round pick (42nd overall) by the Broncos in this past April's draft, suffered a right thumb injury on his throwing hand in the Broncos' Aug. 19 preseason loss to the San Francisco 49ers. Before the injury, Lock, who is now wearing a cast on his right hand and wrist, had been moving toward being Flacco's backup as he tried to work through the usual rookie growing pains.