Scotland on Monday. The entire squad has been sent for retesting and they postponed the departure of their trip to Slovakia for Friday's Nations League game.
It's a huge blow for the Czech side ahead of their two games this weekend, but their game at Scotland won't be at risk providing they have enough fit players.
The staff member who tested positive has been put into quarantine, but UEFA released details earlier this week that suggested if they had 13 fit senior players, including two goalkeepers, then all games would have to go ahead.
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