FILE - Cleveland Browns quarterback Baker Mayfield walks off the field after his team defeated the Baltimore Ravens in an NFL football game, Sunday, Dec. 12, 2021, in Cleveland. Mayfield and coach Kevin Stefanski tested positive for COVID-19 on Wednesday, Dec. 15, and will likely miss Saturday’s game against the Las Vegas Raiders as Cleveland deals with a widespread outbreak during its playoff pursuit. (AP Photo/David Richard, File)

FILE - 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)

Cleveland Browns quarterback Baker Mayfield throws during the first half of an NFL football game against the Baltimore Ravens, Sunday, Dec. 12, 2021, in Cleveland. (AP Photo/Ron Schwane)

FILE - Cleveland Browns head coach Kevin Stefanski reacts during the second half of an NFL football game against the Baltimore Ravens, Sunday, Dec. 12, 2021, in Cleveland. Quarterback Baker Mayfield and Stefanski tested positive for COVID-19 on Wednesday, Dec. 15, and will likely miss Saturday’s game against the Las Vegas Raiders as Cleveland deals with a widespread outbreak during its playoff pursuit. (AP Photo/David Richard, File)