Aberdeen made light work of William Hill Scottish Cup fourth-round opponents St Mirren as Ryan Christie scored twice in a 4-1 victory.
An early Adam Rooney penalty nudged the Dons ahead before Christie netted either side of Gavin Reilly's strike for the visitors.
Gary Mackay-Steven added a fourth after the interval for Aberdeen as their top-flight class told against the Buddies.
The home side showed no sign of rustiness after their winter break, and were in front after just eight minutes. Greg Stewart...