Oakland Raiders head coach Jon Gruden walks the sideline during the first half of an NFL game a …

Oakland Raiders head coach Jon Gruden walks the sideline during the first half of an NFL game a ...

Oakland Raiders head coach Jon Gruden walks the sideline during the first half of an NFL game against the Chicago Bears at Tottenham Hotspur Stadium in London, England, Sunday, Oct. 6, 2019. (Heidi Fang /Las Vegas Review-Journal) @HeidiFang