Angus Gunn, Grant Hanley, and Kenny McLean all featured for Scotland as they recorded a 2-0 win over Spain in European Championship qualifying on Tuesday evening.
Manchester United's Scott McTominay struck twice for Steve Clarke's side, as they made it two wins from two in qualifying.
Earlier in the day, Christos Tzolis scored for Greece Under-21s against their Belarus counterparts in their qualification for the Under-21 European Championships.
England Under-21s were also in qualifiying action, but were beaten 2-1 by Croatia at Fulham's Craven Cottage, with Max Aarons coming off the bench to play the final 30 minutes.