Manchester United booked a Europa League quarter-final clash with Copenhagen thanks to goals from Jesse Lingard and Anthony Martial at Old Trafford, finishing 7-1 on aggregate.
Phillip Wiesinger got the entertainment underway for LASK with a fine strike from outside the box. His effort was struck first-time and curled past Sergio Romero.
United were quick to equalise as Jesse Lingard got his second goal in two games with a calm finish past Austrian goalkeeper, Alexander Schlager.
Anthony Martial then scored the winner late on with a smooth finish for his 23rd goal of the season in all competitions.