Denver Broncos defensive tackle Marvin Austin (76) wraps up Dallas Cowboys' Phillip Tanner (28) after a short run by Tanner in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys head coach Jason Garrett, left, and Denver Broncos head coach John Fox, right, meet at midfield as their teams warm up before a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos defensive end DeMarcus Ware, left, talks with former teammate Dallas Cowboys tight end Jason Witten, right, as they warm up before a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys quarterback Tony Romo stands on the field as he warms up with the rest of the team before a NFL preseason football game against the Denver Broncos, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys quarterback Brandon Weeden passes during team warm ups before a NFL preseason football game against the Denver Broncos, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

John Elway, Executive Vice President of Football Operations and General Manager of the Denver Broncos, left, talks with Dallas Cowboys team owner Jerry Jones, right, before a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Zac Dysert passes as the team warms up before a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Brandon Weeden passes in the first half of a NFL preseason football game against the Denver Broncos, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Members of the Dallas Cowboys cheerleaders perform before a NFL preseason football game against the Denver Broncos, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos quarterback Brock Osweiler prepares to throw during the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Brock Osweiler (17) hands off to running back C.J. Anderson (22) in the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos running back C.J. Anderson (22) attempts to escape a tackle by Dallas Cowboys' Davon Coleman (60) on a short carry in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos quarterback Brock Osweiler (17) throws under pressure from Dallas Cowboys linebacker Kyle Wilber (51) in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos' C.J. Anderson (22) attempts to gain yardage as Dallas Cowboys' Ryan Smith (33) and Kyle Wilber (51) combine for the stop in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos' David Bruton (30) walks away as Dallas Cowboys' Chris Jones, center, congratulates kicker Dan Bailey (5) on his field goal kick in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos head coach John Fox walks along the sideline during the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys running back D.J. Adams (35) attempts to escape a tackle attempt by Denver Broncos' Lerentee McCray (55) on a short run in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos quarterback Peyton Manning (18) waves to a fan in the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos quarterback Brock Osweiler (17) passes under pressure from Dallas Cowboys' Kenneth Boatright (91) in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos tight end Cameron Morrah (86) fights for extra yardage against a tackle attempt by Dallas Cowboys linebacker Dontavis Sapp (45) in the first half of a NFL preseason football game as line judge Mark Steinkerchner (84) watches, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys' Dartwan Bush (70) and Kenneth Boatright (91) combine to stop Denver Broncos running back Juwan Thompson (40) on a short run in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys defensive end Kenneth Boatright (91) sacks Denver Broncos quarterback Brock Osweiler (17) as center Will Montgomery (64) and offensive tackle Vinston Painter (70) provide protection in the first half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos defensive end DeMarcus Ware (94) waves to fans in the seating area in the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. The game was Ware's first game back in Dallas before being acquired by the Broncos in the off season. (AP Photo/LM Otero)

Denver Broncos quarterback Peyton Manning (18) watches from the sideline during the first half of a NFL preseason football game against the Dallas Cowboys, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos running back Kapri Bibbs (35) fights his way past Dallas Cowboys defensive end Caesar Rayford (95) into the end zone for a touchdown in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos running back Kapri Bibbs (35) fights his way against Dallas Cowboys' Ahmad Dixon (36), Keith Smith (43) and Ryan Smith (33) into the end zone for a touchdown in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Denver Broncos defensive tackle Mitch Unrein (96) celebrates sacking Dallas Cowboys quarterback Dustin Vaughan as guard Stephen Goodin (63) watches in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos head coach John Fox applauds running back Kapri Bibbs (35) after Bibbs scored a touchdown against the Dallas Cowboys in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos wide receiver Cody Latimer (14) grabs a pass under pressure from Dallas Cowboys cornerback Terrance Mitchell (30) and cornerback Tyler Patmon, right, in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. The reception was good for 57 yards. (AP Photo/LM Otero)

Dallas Cowboys quarterback Dustin Vaughan (10) is sacked by Denver Broncos' Mitch Unrein, bottom, as Quanterus Smith, top, leaps over the duo in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos linebacker Shaquil Barrett (48) wraps up Dallas Cowboys quarterback Dustin Vaughan (10) in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos running back Kapri Bibbs (35) leaps into the end zone for a touchdown as the Broncos' Isaiah Burse, left, Dallas Cowboys linebacker Keith Smith (43), Ryan Smith, bottom, and Sterling Moore (26) watch in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. The score was Bibbs' second touchdown of the night. (AP Photo/LM Otero)

Denver Broncos quarterback Brock Osweiler (17) scrambles out of the pocket and keeps the ball for a long run as Dallas Cowboys' Caesar Rayford (95) and Kenneth Boatright (91) give chase in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/LM Otero)