FILE - In this Aug. 15, 2019, file photo, Oakland Raiders head coach Jon Gruden is shown during an NFL preseason football game against the Arizona Cardinals in Glendale, Ariz. The Raiders’ worldwide tour gets started in the preseason when they play a "home" exhibition against Green Bay in Winnipeg on Thursday, Aug. 22. (AP Photo/Rick Scuteri, File)

FILE - In this Nov. 25, 2018, file photo, Oakland Raiders coach Jon Gruden, center left, speaks with quarterback Derek Carr before the team's NFL football game against the Baltimore Ravens in Baltimore. "We have to win this year," Carr said. "Nobody cares about what's after this. We have to win now. What's cool about this team is the expectation." (AP Photo/Gail Burton, File)

FILE - In this Aug. 15, 2019, file photo, Oakland Raiders wide receiver Antonio Brown (84) puts on his helmet prior to the team's NFL football game against the Arizona Cardinals in Glendale, Ariz. Brown missed significant practice time dealing with frost-bitten feet suffered while getting cryotherapy treatment in France and waging a battle with the NFL over the use of his outdated helmet. He lost a grievance to allow him to use the helmet that's no longer certified as safe and returned to camp. (AP Photo/Rick Scuteri, File)