Scotland fans face a scramble to secure tickets for the World Cup play-off final if Steve Clarke 's side beat Ukraine in the last four.
The Tartan Army would be booked in for a trip to Cardiff if March's clash with the Ukrainians at Hampden goes to plan and the Welsh beat Austria in the race to reach Qatar 2022.
The Austrian FA have announced their supporters will receive only 1,800 tickets for the match at the Cardiff City Stadium and the allocation would almost certainly remain the same for the final, should Scotland and Wales get there.
Scotland Supporters Club is currently full at 38,000 members and over 20,000 fans snapped up tickets for the Ukraine semi-final on the very first day of ticket sales earlier this week.
And briefs will be gold dust for Scots fans if they make it through to play Wales - who are still smarting at missing out to Scotland in two previous World Cup qualifying showdowns for the tournaments in 1978 and 1986.
Scotland would receive a far higher allocation if they made it through to the play-off final and Austria won the other semi-final.
Their Ernst Happel Stadium in Vienna has a capacity of 50,865.