Oakland Raiders owner Mark Davis speaks to his players during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders players stretch during an NFL football training camp practice at Allegiant Stadium, Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders linebacker Tanner Muse (55) stands with teammates during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders head coach Jon Gruden walks across the field during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders cornerback Amik Robertson (41) catches the ball during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders wide receiver Bryan Edwards (89) runs a drill during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders quarterback Derek Carr (4) greets offensive tackle Kolton Miller, right, during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders wide receiver Marcell Ateman (88) reacts while on the field during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders tight end Jason Witten (82) runs a drill during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)

Las Vegas Raiders quarterback Marcus Mariota (8) runs down the field during an NFL football training camp practice Friday, Aug. 21, 2020, in Las Vegas. (AP Photo/John Locher)