David Turnbull will leave the Scotland camp with Steve Clarke set make a couple of call-ups for the clashes with Republic of Ireland and the Ukraine return.
The Celtic midfielder will head back to his club side with an ankle injury sustained in the defeat to St Mirren in Paisley. The hope was the issue would clear up quickly, however, that hasn't been the case and he will now drop out of the squad for the next two games.
It is another blow for the Scotland boss to contend with following the injury to former Rangers kid Nathan Patterson in the first period at Hampden which result in him being stretchered off. The youngster has been flying at Everton this season after becoming a key man under Frank Lampard and playing every single minute of their English Premier League campaign to date.
