Detroit Lions QB Matthew Stafford has been placed on a reserve/COVID-19 list, according to NFL.com.
Those put on the list indicate the person has had close contact with someone who has tested positive for COVID-19. This does not mean the quarterback has contracted the virus.
The #Lions have placed QB Matthew Stafford on the COVID-19 list, per the wire.
— Ian Rapoport (@RapSheet) August 1, 2020