Robin van Persie's hat-trick on Wednesday meant a fantastic comeback for Manchester United over Olympiakos.
David Moyes' side won 3-2 on aggregate which takes them into the Champions League quarter-finals.
Van Persie's first goal came from a penalty midway through the first half at Old Trafford.
Then just before half time he scored his second and levelled the tie overall.
He sealed the deal with a free-kick in the second half.
Supporters then faced a tense forty minutes as United held on for the win.