IRVING, TX - AUGUST 09: Quarterback Peyton Manning #18 of the Indianapolis Colts throws against the Dallas Cowboys during a preseason game at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Peyton Manning #18 of the Indianapolis Colts throws the ball before a preseason game against the Dallas Cowboys at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Head coach Wade Phillips of the Dallas Cowboys before a preseason game against the Indianapolis Colts at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Peyton Manning #18 of the Indianapolis Colts before a preseason game against the Dallas Cowboys at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Head coach Tony Dungy of the Indianapolis Colts before a preseason game against the Dallas Cowboys at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Tony Romo #9 of the Dallas Cowboys throws against the Indianapolis Colts during a preseason game at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Running back Marion Barber #24 of the Dallas Cowboys is tackled by Marlin Jackson #28 of the Indianapolis Colts during a preseason game at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Running back Dede Dorsey #25 of the Indianapolis Colts runs the ball past Roy Williams #31 of the Dallas Cowboys during a preseason game at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Tony Romo #9 of the Dallas Cowboys talks with Julius Jones during a preseason game against the Indianapolis Colts at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Head coach Tony Dungy of the Indianapolis Colts during a preseason game against the Dallas Cowboys at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Peyton Manning #18 of the Indianapolis Colts talks with Marvin Harrison #88 during a preseason game against the Dallas Cowboys at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)

IRVING, TX - AUGUST 09: Quarterback Peyton Manning #18 of the Indianapolis Colts throws against the Dallas Cowboys during a preseason game at Texas Stadium on August 9, 2007 in Irving, Texas. (Photo by Ronald Martinez/Getty Images)