Oakland Raiders head coach Jon Gruden reacts on the sideline during the first half of an NFL ga …

Oakland Raiders head coach Jon Gruden reacts on the sideline during the first half of an NFL ga ...

Oakland Raiders head coach Jon Gruden reacts on the sideline during the first half of an NFL game against the Denver Broncos at Empower Field at Mile High in Denver, Colo., Sunday, Dec. 29, 2019. (Heidi Fang /Las Vegas Review-Journal) @HeidiFang