Dallas Cowboys linebacker Brandon Williams (59) stops Miami Dolphins running back Ricky Williams (34) in the first half of an NFL preseason football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Henne (7) attempts to get the ball to running back Ronnie Brown (23) under pressure from Dallas Cowboys linebacker Victor Butler (57) in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/Mike Fuentes)

Miami Dolphins wide receiver Davone Bess, left, fights for extra yardage against Dallas Cowboys' Herb Donaldson (31) in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins running back Ricky Williams (34) stiff-arms Dallas Cowboys cornerback Bryan McCann (37) on a long run in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/Mike Fuentes)

Miami Dolphins kicker Dan Carpenter (5) and Dallas Cowboys cornerback Bryan McCann watch Carpenter's field goal in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys cornerback Bryan McCann (37) defends as Miami Dolphins wide receiver Brandon Marshall is unable to reach a pass in the end zone in the first half of a preaseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Henne (7) hands off to running back Ronnie Brown (23) in the first half of an NFL preseason football game against the Dallas Cowboys, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Pennington (10) makes adjustments at the line of scrimmage as Dallas Cowboys linebacker Leon Williams (52) lines up in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Pennington (10) hands off to running back Patrick Cobbs (38) in the first half of a preseason NFL football game against the Dallas Cowboys, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins running back Patrick Cobbs (38) attempts to escape the grasp of Dallas Cowboys cornerback Jamar Wall after making a reception in the second half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys place-kicker David Buehler (18) and long snapper Louis-Philippe Ladouceur (91) celebrate a field goal by Buehler in the second half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins cornerback Nolan Carroll (28) breaks up a pass intended for Dallas Cowboys wide receiver Manuel Johnson (15) in the second half of a preseason NFL football game Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Boxer Manny Pacquiao waves to fans as he appears at a preseason NFL football game between the Dallas Cowboys and the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. Pacquiao is scheduled to fight Antonio Margarito on Nov. 13 at Cowboys Stadium. (AP Photo/LM Otero)

Boxer Antonio Margarito walks along the ground level suites with an unidentified woman as he appears at a preseason NFL football game between the Dallas Cowboys and the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. Margarito is scheduled to fight Manny Pacquiao on Nov. 13 at Cowboys Stadium. (AP Photo/LM Otero)

Boxer Manny Pacquiao shakes hands with a fan as he appears at a preseason NFL football game between the Dallas Cowboys and the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. Pacquiao is scheduled to fight Antonio Margarito on Nov. 13 at Cowboys Stadium. (AP Photo/LM Otero)

Boxer Manny Pacquiao waves to fans as he appears at a preseason NFL football game between the Dallas Cowboys and the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. Pacquiao is scheduled to fight Antonio Margarito on Nov. 13 at Cowboys Stadium (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Henne passes under pressure from Dallas Cowboys linebacker Victor Butler, left, in the first half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Tony Romo (9) laughs as he chats with Jon Kitna, second from right, backup quarterback Stephen McGee (7) and offensive coordinator Jason Garrett, second from left, in the first half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee smiles as he chats with teammates on the sideline during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee drops back to pass in the first half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys cornerback Cletis Gordon (26) grabs an airborne Miami Dolphins wide receiver Roberto Wallace (18) following his reception in the second half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/Mike Fuentes)

Miami Dolphins wide receiver Marlon Moore, left, comes down with a touchdown reception against Dallas Cowboys cornerback Bryan McCann, right, in the second half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/Mike Fuentes)

Miami Dolphins safety Nate Ness (31) looks on as Dallas Cowboys' Mat McBriar (1) congratulates kicker David Buehler (18) on his game-winning field goal during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. The Cowboys won 27-25. (AP Photo/LM Otero)

Dallas Cowboys coach Wade Phillips look on in the second half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee passes in the second half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins coach Tony Sparano looks on in the final moments of a preseason NFL football game against the Dallas Cowboys, Thursday, Sept. 2, 2010, in Arlington, Texas. The Cowboys won 27-25. (AP Photo/Mike Fuentes)

Miami Dolphins wide receiver Roberto Wallace (18) grabs a reception in front of Dallas Cowboys cornerback Cletis Gordon (26) in the second half of a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. The Cowboys won 27-25. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Dez Bryant prepares to stretch with the team before an NFL preseason football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Members of the Dallas Cowboys cheerleaders performs before an NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Manuel Johnson (15) and Miami Dolphins safety Nate Ness (31) during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

A Miami Dolphins fan cheers during the second half of an NFL preseason football game against Dallas Cowboys in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

A Dallas Cowboys fan cheers during the second half of an NFL preseason football game against Miami Dolphins in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

Miami Dolphins tight end Anthony Fasano (80) celebrates against Dallas Cowboys linebacker Leon Williams (52)during the first half of an NFL preseason football game in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

A Dallas Cowboys fan cheers during the second half of an NFL preseason football game against Miami Dolphins in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

The Dallas Cowboys cheerleaders perform before a NFL preseason football game against the Miami Dolphins in Arlington, Texas, on Thursday, Sept. 2, 2010.(AP Photo/Mike Fuentes)

Dallas Cowboys defensive end Jason Hatcher (97) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee (7) and running back Herb Donaldson (31) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys offensive coordinator Jason Garrett, left, and quarterback Stephen McGee (7) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys running back Lonyae Miller (35) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

A member of the Dallas Cowboys cheerleaders during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys coach Wade Phillips look on in the second half of a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys coach Wade Phillips during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins head coach Tony Sparano looks on during the first half of an NFL preseason football game against the Dallas Cowboys in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

Dallas Cowboys wide receiver Dez Bryant (88) before a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Henne (7) barks calls during the first half of an NFL preseason football game against the Dallas Cowboys in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

An exterior view of Cowboys Stadium before an NFL preseason football game between against the Miami Dolphins in Arlington, Texas, on Thursday, Sept. 2, 2010. (AP Photo/Mike Fuentes)

Miami Dolphins running back Patrick Cobbs (38) and Dallas Cowboys linebacker Jason Williams (58) during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee (7) and Miami Dolphins defensive end Kendall Langford during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins running back Patrick Cobbs (38) and Dallas Cowboys linebacker Jason Williams (58) during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee (7) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys coach Wade Phillips during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins running back Patrick Cobbs (38) Dallas Cowboys linebacker Leon Williams (52) and cornerback Jamar Wall, right, during a preseason NFL football game, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Tyler Thigpen (16) during a preseason NFL football game against the Dallas Cowboys, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Boxer Manny Pacquiao, right, and his coach Freddie Roach, left, at a preseason NFL football game between the Dallas Cowboys and Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Stephen McGee (7) during a preseason NFL football game against the Miami Dolphins, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins quarterback Chad Pennington (10) during warmups before the start of an NFL football game against the Dallas Cowboys, Thursday, Sept. 2, 2010, in Arlington, Texas. (AP Photo/Tony Gutierrez)