Oakland Raiders defensive end Khalil Mack (52) takes the field for warm up drills prior to the team’s game against the New York Giants in Oakland, Calif., Sunday, Dec. 3, 2017. Heidi Fang Las Vega …

Oakland Raiders defensive end Khalil Mack (52) takes the field for warm up drills prior to the team’s game against the New York Giants in Oakland, Calif., Sunday, Dec. 3, 2017. Heidi Fang Las Vegas Review-Journal @HeidiFang