Stuart Armstrong, Kieran Tierney and Ryan Christie will all miss Scotland's Euro 2020 play-off semi-final against Israel on Thursday after the former tested positive for Covid-19.
Armstrong was the only member of the squad to return a positive test.
But Arsenal defender Tierney and Celtic attacker Christie must self-isolate for 14 days from Tuesday after being identified as close contacts.
They will also miss Nations League ties with Slovakia and the Czech Republic.
Manager Steve Clarke also revealed that defenders Scott McKenna and Liam Palmer and attacker Oliver Burke will be absent for all three matches through injury.
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Furthermore, Christie will be unavailable for Celtic's Old Firm meeting with Rangers on 17 October, while Tierney will miss Arsenal's visit to Manchester City the same day.
Southampton midfielder Armstrong tested negative after arriving at the Scotland camp on Monday.
However, a subsequent Uefa test came back positive, meaning he must self-isolate for 10 days from Tuesday. |  |
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