Champ Bailey leaves game for ankle
His return was listed as questionable.
The perennial Pro Bowler threw down his helmet shortly after a collision with Texans tight end Owen Daniels midway through the third quarter and then hobbled to the sideline.
Bailey attempted to walk off the injury along the Broncos' bench, but quickly traded his helmet for a stocking cap.
On the next defensive series, Bailey was replaced at his customary spot by rookie Perrish Cox.
Copyright 2010 by The Associated Press
MORE NFL HEADLINES
- NFL mulls fine for Lynch's hat, sources say
- Lynch to media: 'You know why I'm here'
- Ex-QB Blake: Deflating footballs common
- Broncos hire Phillips as defensive coordinator