Paris St Germain will face Real Madrid in a titanic clash in the last 16 of the Champions League while Manchester United take on Atletico Madrid after UEFA declared the original draw void due to a technical error in the process on Monday. Earlier, United were mistakenly drawn with Villarreal, even though both teams had already faced each other in the group stage while the Premier League side's ball was not added to the bowl as a potential opponent for Atletico Madrid. United