Oakland Raiders quarterback Jason Campbell (8) throws a pass in the first quarter during a preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys fan Larry Parker, Jr. sits in the Party Pass Zone holding up a Go Cowboys sign before a preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

DeRon Broughton, of Irving, Texas, wipes the sweat from his forehead while selling programs outside the stadium before a preseason NFL football game between the Dallas Cowboys and the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

With their faces painted to support their teams, Tony Arriola, right, points out a detail to Jacqueline Meza, both of El Paso, Texas, as they sit in the stands of Cowboys Stadium before the NFL preseason game between the Oakland Raiders and Dallas Cowboys in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Oakland Raiders Quarterback Jason Campbell (8) reaches back to pass in the first quarter of a preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders quarterback Jason Campbell (8) is sacked by Dallas Cowboys linebacker Victor Butler (57) and nose tackle Junior Siavii (95) in the first quarter of a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys wide receiver Miles Austin (19) lands with a complete pass against Oakland Raiders corner back Chris Johnson (38) during the first quarter of the preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Oakland Raiders starting quarterback Jason Campbell (8) drops back to pass during the first quarter of the preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Oakland Raiders line backer Trevor Scott forces a fumble by Dallas Cowboys' quarterback Tony Romo (9) during the first quarter of the preseason NFL football game in at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Roy Williams (11) tries to catch a pass as Oakland Raiders cornerback Nnamdi Asomugha (21) knocks the ball away in the first quarter during a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys running back Marion Barber (24) runs against against Oakland Raiders tackle Richard Seymour (92) as Cowboys Doug Free tries to stop Seymour during the first quarter of the preseason NFL football game in at Cowboys Stadium Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Oakland Raiders tight end Zach Miller (80) is tackled after catching a pass by Dallas Cowboys linebacker Jason Williams (58) in the first quarter during a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders head coach Tom Cable spits water in the first quarter during a preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys kick returner Bryan McCann (37) jumps out of bounds against Oakland Raiders kicker Swayze Waters (1) and line backer Travis Goethel (48) during the first quarter of the preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Despite loosing his helmet, Dallas Cowboys' nose tackle Junior Siavii, (95) stops Oakland Raiders running back Rock Cartwright (25) with help from Cowboys teammate Curtis Johnson (98) during the second quarter of the preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Oakland Raiders kicker Sebastian Janikowski (11) is congratulated by teammate Shane Lechler after kicking a go-ahead field goal in the fourth quarter of a football game against the Dallas Cowboys at Cowboys Stadium Thursday, Aug, 12, 2010 in Arlington, Texas

Oakland Raiders fans enjoy the fourth quarter of the NFL preseason game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. The Raiders came back in the last quarter to win 17-6 . (AP Photo/Sharron Ellman)

Oakland Raiders safety Stevie Brown (27) intercepts a pass in the final seconds of the fourth quarter as linebacker Quentin Groves pushes Dallas Cowboys wide receiver Terrell Hudgins (14) out of the play to keep the Cowboys from scoring during a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders kicker Sebastian Janikowski (11) kicks the go-ahead field goal with holder Shane Lechler (9) in the fourth quarter of the NFL preseason game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. The Raiders came back in the last quarter to win 17-6 . (AP Photo/Sharron Ellman)

Oakland Raiders quarterback Jason Campbell (8) and Dallas Cowboys quarterback Tony Romo (9) shake hands on the field after a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders head coach Tom Cable watches the game in the fourth quarter during a preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys injured wide receiver Dez Bryant (88) sits on the bench in the third quarter of a preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys head coach Wade Phillips coaches on the sidelines of the preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Dallas Cowboys starting quarterback Tony Romo (9) laughs after a slide in the first quarter of the preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Injured Dallas Cowboys wide receiver De Bryan (88) watches from the sidelines with teammates during the first quarter of the preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Fan sit back to watch the preseason NFL football game between the Dallas Cowboys and Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Dallas Cowboys' quarterback Tony Romo (9) passes during the first quarter of the NFL preseason football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. The Cowboys recovered. (AP Photo/LM Otero)

Dallas Cowboys cheerleaders perform before the NFL preseason game against the Oakland Raiders at Cowboys Stadium Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharron Ellman)

Dallas Cowboys running back Tashard Choice (23) before the NFL preseason football football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys cheerleaders perform before the NFL preseason game against the Oakland Raiders at Cowboys Stadium Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Sharron Ellman)

Oakland Raiders cornerback Chris Johnson (37) pulls down Dallas Cowboys wide receiver Miles Austin (19) in the first quarter of a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys running back Marion Barber (24) runs against against Oakland Raiders tackle Richard Seymour (92) as Cowboys Doug Free tries to stop Seymour during the first quarter of the preseason NFL football game in at Cowboys Stadium Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

An Oakland Raiders fan cheers during a preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

The Dallas Cowboys cheerleaders entertain the fans during a preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys head coach Wade Phillips questions a call in the fourth quarter of a preseason NFL football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Dallas Cowboys wide receiver Kevin Ogletree (85) is unable to catch a pass as Oakland Raiders linebacker David Nixon (56) defends in the fourth quarter of a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders starting quarterback Jason Campbell (8) and running back Michael Bush (29) during the preseason NFL football game at Cowboys Stadium Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Manuel Johnson (15) before the preseason football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Dallas Cowboys quarterback Tony Romo before the preseason football game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/Cody Duty)

Dallas Cowboys starting quarterback Tony Romo runs to open field during the first quarter of the the NFL preseason game against the Oakland Raiders at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Kevin Ogletree (85) is unable to catch a pass as Oakland Raiders linebacker David Nixon (56) defends in the fourth quarter of a preseason NFL football game at Cowboys Stadium in Arlington, Texas, Thursday Aug. 12, 2010. (AP Photo/Sharon Ellman)

Oakland Raiders starting quarterback Jason Campbell (8) drops back to pass during the first quarter of the preseason NFL football game against the Dallas Cowboys at Cowboys Stadium in Arlington, Texas, Thursday, Aug. 12, 2010. (AP Photo/LM Otero)