Avangard Omsk won't take part in a preseason tournament in August after 20 people from the KHL team tested positive for the coronavirus.
The results included players and staff members tested in training camp, general manager Alexei Volkov told The Associated Press.
Volkov said those infected are isolating and most aren't showing clear symptoms.
The Sochi Hockey Open is scheduled for Aug. 4-9.
The KHL canceled the rest of its season during the playoffs in late March due to the pandemic.
In late May, the league said it plans to open the 2020-21 campaign on Sept. 2.
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