Cincinnati Bengals defensive tackle Andrew Billings (99) pulls down Dallas Cowboys running back Rod Smith (45) during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Michael Ainsworth)

Dallas Cowboys quarterback Dak Prescott (4) looks to throw against the Cincinnati Bengals during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Michael Ainsworth)

Dallas Cowboys running back Rod Smith (45) works to break away from Cincinnati Bengals linebacker Jordan Evans (50) during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Ron Jenkins)

Cincinnati Bengals quarterback Andy Dalton, right, hands off to running back Joe Mixon (28) during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Ron Jenkins)

Dallas Cowboys running back Rod Smith (45) turns upfield against the Cincinnati Bengals during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Ron Jenkins)

Cincinnati Bengals running back Joe Mixon (28) runs around Dallas Cowboys cornerback Chidobe Awuzie (24) during the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Roger Steinman)

Dallas Cowboys kicker Dan Bailey (5) kicks a field goal against the Cincinnati Bengals as teammate Chris Jones (6) holds during the first half of a preseason NFL Football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Michael Ainsworth)

Cincinnati Bengals wide receiver Tyler Boyd (83) runs past Dallas Cowboys linebacker Sean Lee (50) during the first half of a preseason NFL football game in Arlington, Texas, Saturday, Aug. 18, 2018. (AP Photo/Michael Ainsworth)