Houston Texans quarterback Matt Schaub (8) is sacked by Indianapolis  Colts defensive end Robert Mathis in the second quarter of an NFL  football game Sunday, Sept. 11, 2011, in Houston. (AP Photo/David J.  Phillip)

Houston Texans quarterback Matt Schaub (8) is sacked by Indianapolis Colts defensive end Robert Mathis in the second quarter of an NFL football game Sunday, Sept. 11, 2011, in Houston. (AP Photo/David J. Phillip)