Despite woeful form in the league, Manchester United have done well in the Champions League this season, having finished top of their qualifying group with four wins out of six.
Whilst other English teams, like Manchester City and Arsenal, have been given tough draws for the next round, United have been lucky with theirs.
Olympiakos finished second in their group behind PSG after qualifying ahead of Benfica on goal difference. Three wins out of six is a good return and they were desperately unlucky not to get a point in Paris, with Edison Cavani scoring an injury time equaliser.
Tuesday night's game will be United's fifth game against the Greek champions, but what happened in the previous meetings?
