The Packers placed WR Davante Adams on the reserve/COVID-19 list on Monday afternoon.
Being placed on the reserve/COVID-19 list is for a player who either tests positive for COVID-19 or who has been in close contact with an infected person or persons.
In the event Adams has tested positive, and it turns out to be is a false positive, per the league's protocols he would need a second negative test within 24 hours of an initial negative test to play vs Cardinals.
If he’s positive and a symptomatic, Adams can return in 10 days OR in five days with two consecutive negative PCR virus tests 24 hours apart within that five-day period.