Nyon (Switzerland), Dec 20: The Champions League last 16 draw Thursday has pitted Cristiano Ronaldo's Real Madrid against his old side Manchester United.
Jose Mourinho's side travels to England for the first leg looking to add to his impressive record against Alex Ferguson, who only has two wins in 14 encounters against the “Special One's” teams.
AC Milan and Barcelona will repeat last year's quarterfinal that saw the Spanish giants prevail 3-1 on aggregate.
Other Spanish sides also had a tough draw, as Valencia will play big-spending Paris Saint Germain of France and Malaga encounter Portuguese outfit FC Porto.
Defeated finalists Bayern Munich will face English giants Arsenal, while their national rivals Borussia Dortmund will travel to Ukraine to meet Shakhtar Donetsk.
Celtic were rewarded for their heroic group stage efforts that included a win over Barcelona with a tie against Italian champions Juventus.
Galatasaray and Schalke face off in the other tie.
The first matches are to be played Feb 12 and 20, with the second legs scheduled for March 5 and 13.