The Blackhawks aren't at liberty to discuss details of players' health as part of the NHL's return-to-play protocols, Colliton said in offering no further information.
"For now, he's just unfit to play," Colliton said.
Thirty NHL players tested positive for COVID-19 in the latest round of testing, the league said Monday. The NHL didn't reveal who tested positive. The league is also aware of at least 13 other players who tested positive for COVID-19 outside of this testing round in the second phase of the return-to-play plan.
The rest of the Blackhawks' roster was present on the ice Monday. Malcolm Subban and Collin Delia served as the two goaltenders in the primary team practice. Kevin Lankinen is also in the Blackhawks' goaltender mix, Colliton said. Lankinen worked in the taxi squad practice.
"They're all going to be given equal opportunity," Colliton said.
"We want those guys to make it as difficult as possible."
Crawford played in 40 of the Blackhawks' 70 regular-season games, stopping 91.7% of shots on goal and posting a 2.77 goals-against average. This is Crawford's 13th NHL season, which has been played entirely for Chicago.
The 12th-seeded Blackhawks will face the fifth-seeded Oilers in a best-of-five qualifying round series beginning Aug. 1. Those contests will take place in the Edmonton hub.