Overshown (hamstring) has been ruled out for Sunday's game versus the Texans, Todd Archer of ESPN.com reports.
Overshown was originally expected to miss 1-to-2 weeks with a hamstring injury suffered in Week 1, but with a quick turnaround for their next two games, the Cowboys are expected to remain cautious with his return. Shemar James could see extended playing time in Overshown's absence.