Oakland Raiders running back Marshawn Lynch (24) runs against Dallas Cowboys defensive end Demarcus Lawrence (90) during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) passes against the Oakland Raiders during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Oakland Raiders cornerback Sean Smith (21) intercepts a pass in front of Dallas Cowboys wide receiver Dez Bryant (88) during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Dallas Cowboys running back Rod Smith, center, scores a touchdown between Oakland Raiders linebacker NaVorro Bowman (53) and strong safety Keith McGill II (39) during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys running back Alfred Morris (46) runs against Oakland Raiders' Dexter McDonald during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Oakland Raiders quarterback Derek Carr (4) passes against the Dallas Cowboys during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Oakland Raiders defensive end Khalil Mack (52) sacks Dallas Cowboys quarterback Dak Prescott (4) during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Dallas Cowboys cornerback Anthony Brown, left, breaks up a pass intended for Oakland Raiders wide receiver Michael Crabtree (15) during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Oakland Raiders quarterback Derek Carr (4) is hit as he throws by Dallas Cowboys defensive end Daniel Ross during the first half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Oakland Raiders running back Marshawn Lynch (24) is tackled by Dallas Cowboys defenders during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Oakland Raiders wide receiver Michael Crabtree (15) catches a touchdown pass in front of Dallas Cowboys cornerback Chidobe Awuzie (33) during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Dallas Cowboys quarterback Dak Prescott (4) runs for a touchdown against the Oakland Raiders during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) celebrates after scoring a touchdown against the Oakland Raiders with wide receiver Terrance Williams (83) during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) celebrates after scoring a touchdown against the Oakland Raiders during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys head coach Jason Garrett applauds from the sideline during the second half of an NFL football game against the Oakland Raiders in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Oakland Raiders wide receiver Michael Crabtree (15) scores a touchdown against the Dallas Cowboys during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Oakland Raiders wide receiver Michael Crabtree (15) celebrates with quarterback Derek Carr, left, and offensive tackle Marshall Newhouse (73) after scoring a touchdown against the Dallas Cowboys during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. (AP Photo/Ben Margot)

Dallas Cowboys cornerback Jourdan Lewis (27) is called for an interference penalty while defending a pass intended for Oakland Raiders wide receiver Michael Crabtree (15) during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. The Cowboys won 20-17. (AP Photo/Ben Margot)

Oakland Raiders quarterback Derek Carr (4) fumbles the ball into the end zone in front of Dallas Cowboys strong safety Jeff Heath (38) during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. The play was ruled a touchback and the Cowboys got possession. The Cowboys won 20-17. (AP Photo/Ben Margot)

Oakland Raiders quarterback Derek Carr (4) puts his head down on the field after losing a fumble on a touchback against the Dallas Cowboys during the second half of an NFL football game in Oakland, Calif., Sunday, Dec. 17, 2017. The Cowboys won 20-17. (AP Photo/Ben Margot)