This revamped Texans offense sure looks a lot like the old one.
Schaub, who replaced David Carr after backing up Michael Vick for three years in Atlanta, had an inauspicious debut going 3-for-5 for 25 yards. But the defending NFC champion Chicago Bears scored 13 fourth quarter points, including a 47-yard go-ahead field goal by Robbie Gould with 2:23 remaining to beat the Texans 20-19 in the exhibition opener for both teams Saturday night.
The Texans got Schaub in a trade with the Falcons in March and released Carr, the No. 1 pick in 2002, after he failed to lead Houston to a winning record in five seasons.
That first drive, which also featured a 1-yard run by new Texan Ahman Green, ended in a punt. On his second and last series, Schaub looked a bit better, finding Andre Johnson for a 15-yard gain and Owen Daniels up the middle for 8 yards.
The Texans had to settle for a field goal that put them ahead 3-0 after Schaub overthrew a wide-open Kevin Walter in the end zone on 3rd-and-4.
The 30-year-old Green, who signed with the Texans in March after seven seasons in Green Bay, finished with three carries for seven yards.
Rex Grossman, hoping for more consistency in his second full season as a starter, looked sharp in two series and completed his first eight passes. He found first-round pick Greg Olsen for a 5-yard gain before hitting Muhsin Muhammad for 10 yards on the first drive.
But two penalties in that series stalled the drive, and the Bears failed to score after a 52-yard field goal attempt sailed wide left. Grossman was 8-of-10 for 50 yards.
Cedric Benson, in his first season as the featured back, had five carries for 23 yards. It was the first career preseason game for the former University of Texas standout after he sat out as a rookie because of contract negotiations and last year with a shoulder sprain.
Backup Brian Griese's first pass was intercepted by Von Hutchins, who ran it back 20 yards. The Texans added another field goal that made it 6-0 after Ron Dayne was stuffed for a 1-yard loss on from the 1 on third down.
The NFL suspended Ayanbadejo for the first four regular-season games without pay for violating the league's policy on anabolic steroids and related substances on Thursday. He denied taking steroids and blamed the test results on an over-the-counter supplement. The suspension begins Sep. 1.
Houston's Jerome Mathis returned a kickoff 78 yards after the Bears' TD. The third-year player, who missed 14 games with injuries last season after making the Pro Bowl as a rookie, was finally brought down by Gould.
Jeb Putzier caught a 6-yard touchdown pass from Rosenfels in the third quarter to push Houston's lead to 19-7.
Last year's No. 1 overall pick, Mario Williams, playing at right end exclusively, didn't have a tackle. Rookie tackle Amobi Okoye had just one assist. Okoye, drafted 10th this year, did get in the backfield once and hurried Grossman.
Rookie Jacoby Jones, a third-round pick out of Division II Lane College, led the Texans with four receptions for 47 yards and also had a 22-yard punt return.