Scotland captain Darren Fletcher has been ruled out of Saturday's Euro 2012 qualifier with Liechtenstein in Vaduz due to tonsillitis.
However, the 27-year-old could be fit to face Spain on Tuesday.
Scottish medical staff will continue to monitor the Manchester United player and will make a decision before their match against the World Cup winners.
Meanwhile, James McArthur has been called into Craig Levein's squad as a replacement for the injured Robert Snodgrass, while Cardiff City striker Kenny Miller remains a doubt for the Liechtenstein clash.
