Purcell (illness) was placed on the reserve/COVID-19 list Monday, Ben Swanson of the Broncos' official site reports, and he tested positive for the virus, according to Tom Pelissero of NFL Network.
Purcell's potential absence against the Chargers on Sunday would be a blow to the Broncos' defensive line. If he is unable to clear protocols in time, DeShawn Williams would likely draw the start at nose tackle.