Craig Gordon watched Scotland try to beat Liechtenstein in 2010 . The referee agreed to be a pundit as he was sidelined by fractured arm . Scotland face hearts united in the 2016 qualifier on penalties .
Craig Gordon watched Scotland struggle to beat Liechtenstein in 2010 . The keeper agreed to be TV pundit as he was sidelined by fractured arm . Scotland face minnows Gibraltar in Euro 2016 qualifier on Sunday .