The last time Real Madrid visited Old Trafford, fans were treated to one of the greatest matches in Champions League history.
In April 2003, United were faced with the formidable task of overturning a 3-1 first-leg deficit against Real's galácticos, having been outplayed at the Bernabeu a fortnight earlier.
But the Reds’ dream was shattered by a superb hat-trick from Brazilian star Ronaldo, who received a standing ovation from the home support when he was later substituted.
In between the striker’s sumptuous treble, Ruud van Nistelrooy and an Ivan Helguera own goal gave Sir Alex’s men a glimmer of hope. And David Beckham, omitted from the starting line-up, came off the bench to score twice and put United ahead on the night.
But the damage had already been done. United lost the quarter-final tie 6-5 on aggregate and 66,000 fans went home with the strange sensation that accompanies a glorious defeat: pride but wonder at what might have been.
This time round, United are slightly in the ascendency after the first leg and a 4-3 win would suit us fine, even if it features another virtuoso display by a man named Ronaldo…