Arsenal fullback Kieran Tierney has suffered a shock injury setback that has forced him to withdraw from the Scotland squad.

He was set to be included in the Scottish squad for the double-header against Russia and San Marino, which will be announced by boss Steve Clarke today.

But The Sun says following discussions with the Gunners medics, the decision has been made to exclude him from the squad.

Tierney, who has played just 77 minutes of football since his £25million transfer from Celtic, didn't play in Arsenal's 1-1 draw against Manchester United at Old Trafford last night.

He had been pencilled in for Thursday's Europa League game against Standard Liege but is now rated doubtful for that.