Denver Broncos quarterback Case Keenum throws a pass during the first half of an NFL football game against the Los Angeles Chargers, Sunday, Dec. 30, 2018, in Denver. (AP Photo/David Zalubowski)

Denver Broncos head coach Vance Joseph, front left, greets Los Angeles Chargers head coach Anthony Lynn after an NFL football game, Sunday, Dec. 30, 2018, in Denver. (AP Photo/Jack Dempsey)