Cleveland Browns quarterback Nick Mullens throws during the first half of an NFL football game against the Denver Broncos, Oct. 21, 2021, in Cleveland. Mullens is slated to make his first start since last season for San Francisco. The Browns activated him from the practice squad Thursday, Dec. 16, 2021, presumably to be their No. 2 behind Case Keenum before the latest wave of positive COVID-19 results. (AP Photo/Ron Schwane, File)