The announcement doesn't necessarily mean that any of the players tested positive for COVID-19. General manager Stan Bowman said during training camp that the team was 100% vaccinated.
Chicago hosts the Detroit Red Wings on Sunday night. The struggling Blackhawks are off to a 0-4-1 start.
The Blackhawks recalled forward Reese Johnson from Rockford of the American Hockey League. Johnson had a goal and an assist during the IceHogs' 6-3 loss to Iowa on Friday night.