Houston Texans' J.J. Watt, left, tosses a ball with Jarrett Skaggs, 5, of Vega, Texas, before the team's preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys quarterback Dak Prescott (4) throws a pass under pressure from Houston Texans outside linebacker Brennan Scarlett (57) in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans staff check on running back Lamar Miller (26) after he suffered an unknown injury in the first half of a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans quarterback Joe Webb (5) and others listen to the national anthem before a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans running back Lamar Miller (26) is carted off the field after suffering an unknown injury in the first half of a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans quarterback Deshaun Watson (4) fumbles the ball after being tackled by Dallas Cowboys' Taco Charlton (97) in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. The Cowboys recovered the fumble. (AP Photo/Michael Ainsworth)

Houston Texans quarterback Deshaun Watson (4) is sacked by Dallas Cowboys' Taco Charlton, rear, in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. Watson fumbled the ball on the sack and Dallas recovered. (AP Photo/Ron Jenkins)

Houston Texans outside linebacker Whitney Mercilus, left, attempts to stop Dallas Cowboys running back Tony Pollard (36) from advancing the ball in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys linebacker Joe Thomas (48) recovers a blocked punt-attempt by Houston Texans' Trevor Daniel (8) in the end zone for a Cowboys touchdown in the first first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys free safety Xavier Woods (25) attempts to stop Houston Texans running back Karan Higdon (31) from advancing the ball in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans quarterback Joe Webb (5) prepares to throw a pass as offensive tackle Seantrel Henderson (76) helps against pressure from Dallas Cowboys' Dorance Armstrong (92) in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys' Joe Thomas (48) recovers a blocked Houston Texans' Trevor Daniel (8) punt-attempt in the end zone for a Cowboys touchdown in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Houston Texans' Joe Webb (5) scrambles out of the pocket in the first half of a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Houston Texans defensive end Charles Omenihu (94) rushes as Dallas Cowboys quarterback Cooper Rush (7) throws a pass in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys' Leighton Vander Esch celebrates a blocked Houston Texans pass attempt in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys quarterback Dak Prescott (4) scrambles out of the pocket under pressure from Houston Texans' Carlos Watkins (91) in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys' Kerry Hyder (51) and Taco Charlton, center, chase down Houston Texans' Joe Webb (5) who scrambles out of the pocket in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans' Deshaun Watson (4) walks along the sideline in the first half of a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys defensive back C.J. Goodwin (29) intercepts a pass intended for Houston Texans' Tyron Johnson, right rear, with help on defense by Donovan Wilson, right front, in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans head coach Bill O'Brien watches play against the Dallas Cowboys in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys head coach Jason Garrett, left, celebrates with Alfred Morris (23) after Morris carried the ball for a touchdown agains the Houston Texans in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys' Jason Witten (82), Randall Cobb (18) and Michael Gallup, center, celebrate a touchdown catch by Gallup as Houston Texans' A.J. Moore (33) walks away in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys defensive end Taco Charlton (97) is checked on by medical staff after suffering an unknown injury in the first half of a preseason NFL football game against the Houston Texans in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans running back Damarea Crockett (36) finds running room as Dallas Cowboys defensive end Joe Jackson (56) pursues in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys defensive end Joe Jackson (56) sacks Houston Texans' Joe Webb (5) who loses his helmet on the stop as Texans' Rick Leonard (72) and Senio Kelemete (64) look on in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Houston Texans cornerback Lonnie Johnson (32) breaks up a pass in the end zone intended for Dallas Cowboys wide receiver Devin Smith (15) in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys outside linebacker Sean Lee (50) stands on the sideline while watching play against the Houston Texans in the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys quarterback Mike White (3) throws a pass from the pocket as Houston Texans linebacker Jamal Davis (49) applies pressre in the second half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Jordan Chunn (46) runs the ball for a touchdown as quarterback Mike White (3) celebrates in the second half of a preseason NFL football game agains the Houston Texans in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Jordan Chunn (46) and wide receiver Ced Wilson (16) celebrate a touchdown scored by Chunn during the second half of the team's preseason NFL football game against the Houston Texans in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Houston Texans linebacker Jamal Davis (49) pressures as Dallas Cowboys quarterback Mike White (3) prepares to throw a pass during the second half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys linebacker Justin Phillips, left, makes the tackle after Houston Texans wide receiver Chad Hansen, right, made a catch in the second half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Mike Weber (40) escapes pressure on a run from Houston Texans defensive tackle Tracy Sprinkle (62) in the second half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys defensive back Donovan Wilson (37) intercepts a pass intended for Houston Texans wide receiver Chad Hansen (85) in the second half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Dallas Cowboys' Demarcus Lawrence walks along the sideline in the second half of a preseason NFL football game against the Houston Texans in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Houston Texans defensive end J.J. Watt (99) walks along the sideline in the second half of a preseason NFL football game against the Dallas Cowboys in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)

Dallas Cowboys quarterback Dak Prescott (4) and Houston Texans tight end Jordan Thomas (83) talk after their preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Ron Jenkins)

Houston Texans head coach Bill O'Brien, left, and Dallas Cowboys head coach Jason Garrett, right, greet each other after their preseason NFL football game in Arlington, Texas, Saturday, Aug. 24, 2019. (AP Photo/Michael Ainsworth)