Denver Broncos running back Selvin Young (35) is tripped up by Houston Texans safety Will Demps (47) after gaining ten yards for a first down. (AP Photo/Dave Einsel)

Denver Broncos linebacker Louis Green (52) is transported from the field after being injured during the first quarter. (AP Photo/Dave Einsel)

Denver Broncos linebacker Louis Green (52) is tended to by team trainers after being injured during the first quarter. (AP Photo/Dave Einsel)

Denver Broncos linebacker Boss Bailey (97) gets a pat on the head from teammate Nate Webster (58) as he is helped off the field after being injured during the first quarter. (AP Photo/Dave Einsel)

Denver Broncos quarterback Jay Cutler passes during the first quarter. (AP Photo/Dave Einsel)

Mike Shanahan watches a replay during the first quarter. (AP Photo/Dave Einsel)

(AP Photo/Dave Einsel)

Denver Broncos tight end Nate Jackson (81) pushes off Houston Texans linebacker Zac Diles (54) on a 16-yard pass play from Jay Cutler during the first quarter. (AP Photo/Dave Einsel)

Denver Broncos' Eddie Royal (19) runs by Houston Texans' Derrick Roberson (29) on a 26-yard kick return. (AP Photo/Dave Einsel)

Denver Broncos Christian Morton, left (25) reacts as Houston Texans place kicker Kris Brown (3) and holder Matt Turk (1) celebrate their game winning field goal on the last play. (AP Photo/Dave Einsel

Houston Texans head coach Gary Kubiak signals to an official during the fourth quarter. (AP Photo/Dave Einsel)