Broncos linebacker Nate Irving knocked from game
Irving was blocked by Texans free safety Glover Quin into punt returner Trindon Holliday in the second quarter. Irvin appeared to be knocked unconscious after striking Holliday's left shoulder with the crown of his helmet. He fell to the grass on the Broncos sideline and his teammates waved over the team's medical personnel.
Irving, a second-year pro from North Carolina State, stayed down for several minutes before being helped to his feet. The Broncos said he wouldn't return to the game.