Okoye, the Texans' first-round draft pick in 2007, has been bothered this week by a high ankle sprain.

Schaub is out at least two weeks after hurting his left medial collateral ligament on a hit by Minnesota's Jared Allen in last week's 28-21 loss. Sage Rosenfels was set to start against Baltimore on Sunday.

Also this week, the Texans placed linebacker Zac Diles on injured reserve after he broke his left leg in practice on Wednesday. Diles was leading the Texans with 66 tackles.