Denver Broncos middle linebacker Joe Mays (51) and defensive tackle Kevin Vickerson (99) celebrate with defensive end Elvis Dumervil (92) after Dumervil sacked Houston Texans quarterback Matt Schaub (8) in the end zone for a safety during the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans quarterback Matt Schaub (8) is sacked in the end zone for a safety by Denver Broncos defensive end Elvis Dumervil (92) during the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans running back Arian Foster (23) reacts after scoring a touchdown against the Denver Broncos in the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans wide receiver Andre Johnson (80) celebrates with running back Arian Foster (23) and wide receiver Kevin Walter (83) after scoring on a touchdown pass against the Denver Broncos in the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans wide receiver Andre Johnson (80) catches a pass for a touchdown as Denver Broncos cornerback Tracy Porter (22) pursues in the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans running back Arian Foster (23) scores a touchdown against Denver Broncos defensive tackle Kevin Vickerson (99) in the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans quarterback Matt Schaub (8) congratulates Houston Texans wide receiver Andre Johnson (80) after Johnson caught a pass for a touchdown in the first quarter of an NFL football game against the Denver Broncos Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans running back Arian Foster (23) reacts after scoring a touchdown against the Denver Broncos in the first quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans wide receiver Keshawn Martin (82) catches a pass against Denver Broncos cornerback Tracy Porter (22) in the second quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Denver Broncos quarterback Peyton Manning (18) runs the ball against Houston Texans outside linebacker Brooks Reed (58) in the second quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos running back Willis McGahee (23) is hit by Houston Texans inside linebacker Brian Cushing (56) and strong safety Glover Quin (29) in the second quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans wide receiver Kevin Walter (83) celebrates with tight end Garrett Graham (88), wide receiver Andre Johnson (80) and tackle Derek Newton (75) after catching a pass for a touchdown in the second quarter of an NFL football game against the Denver Broncos, Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans inside linebacker Brian Cushing (56) reacts after sacking Denver Broncos quarterback Peyton Manning (18) in the third quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans fullback James Casey (86) recovers an onside kick as Denver Broncos free safety David Bruton (30) defends in the third quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans quarterback Matt Schaub (8) throws for a touchdown against the Denver Broncos in the second quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos wide receiver Eric Decker (87) is tackled by Houston Texans cornerback Kareem Jackson (25) after catching a pass in the third quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos quarterback Peyton Manning (18) is sacked by Houston Texans defensive end J.J. Watt (99) as guard Manny Ramirez (65) defends in the third quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans wide receiver Kevin Walter (83) brings down a pass as he is hit by Denver Broncos strong safety Chris Harris (25) in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans wide receiver Lestar Jean (18) leaps to catch a pass against Denver Broncos strong safety Chris Harris (25) in the third quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

September 23 2012; Denver, CO, USA; Denver Broncos cheerleader performs during second quarter of the game against the Houston Texans at Sports Authority Field. Mandatory Credit: Ron Chenoy-US PRESSWIRE

Denver Broncos coach John Fox, right, greets Houston Texans coach Gary Kubiak after an NFL football game Sunday, Sept. 23, 2012, in Denver. Houston won 31-25. (AP Photo/Jack Dempsey)

Denver Broncos quarterback Peyton Manning (18) walks off the field after the Broncos lost 31-25 to the Houston Texans in an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans quarterback Matt Schaub (8) talks with Denver Broncos quarterback Peyton Manning (18) after an NFL football game Sunday, Sept. 23, 2012, in Denver. Houston won 31-25. (AP Photo/Jack Dempsey)

Denver Broncos quarterback Peyton Manning (18) walks off the field in the second quarter of an NFL football game against the Houston Texans, Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos wide receiver Brandon Stokley (14) is tripped up by Houston Texans inside linebacker Brian Cushing (56) in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos head coach John Fox, right, shouts to the referee in the fourth quarter of an NFL football game against the Houston Texans, Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos quarterback Peyton Manning (18) reacts after a sack in the fourth quarter of an NFL football game against the Houston Texans, Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Houston Texans defensive back Quintin Demps (27) tips a pass intended for Denver Broncos wide receiver Eric Decker (87) in the end zone as Houston Texans cornerback Kareem Jackson (25) helps defend in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. Denver Broncos tight end Joel Dreessen (81) caught the tipped pass for a touchdown. (AP Photo/Jack Dempsey)

Houston Texans running back Arian Foster (23) tries to avoid a tackle by Denver Broncos defensive back Tony Carter (32) as Houston Texans tackle Duane Brown (76) looks on in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Houston Texans head coach Gary Kubiak, left, talks with quarterback Matt Schaub (8) on the sidelines during the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)

Denver Broncos tight end Jacob Tamme (84) breaks up a pass intended for Houston Texans strong safety Glover Quin (29) in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/Jack Dempsey)

Denver Broncos wide receiver Brandon Stokley (14) catches a pass for a touchdown against Houston Texans defensive back Brice McCain (21) in the fourth quarter of an NFL football game Sunday, Sept. 23, 2012, in Denver. (AP Photo/David Zalubowski)