Scottish FA Youth Cup semi-final 2011/12
St Mirren 1-4 Celtic
St Mirren Park, Paisley
Smith 22; Watt 36, 42, Herron 73, F. Twardzik 86
Celtic Under-19s came from behind to defeat St Mirren 4-1 and claim a place in this season's Scottish FA Youth Cup final.
Jack Smith put the Buddies ahead after 22 minutes but a Tony Watt brace gave Celtic the advantage going into half time.
John Herron added a third on 73 minutes and Filip Twardzik wrapped up the win with four minutes left on the clock.
The SPL Under-19 champions will take on Dundee United or Queen of the South in this year's final.