If anyone was going to score in this game this evening, you would have put money on it being Christiano Ronaldo.
With so much nostalgia and good will between the winger and his former club in the build up to tonight's match, it was perhaps inevitable that he would come back to haunt them.
But his goal on the half hour mark only served to cancel out the surprise lead the visitors had taken ten minutes earlier through a Danny Welbeck header from Wayne Rooney's corner.
The hosts started the brighter, but United shocked the home crowd, after Kagawa won a contentious corner from a challenge with Madrid captain Sergio Ramos. Rooney put it in and Welbeck nodded home from inside the six yard box.
Welbeck's header however only served to galvanise Madrid, and when Angel Di Maria, who looked a threat all evening, whipped in a cross from the left, there was no question about who would rise to meet it, with Ronaldo heading the ball past De Gea to equalise.
The second half saw Madrid pile on the pressure in search of a second, with Di Maria causing problems down the left before he was, perhaps surprisingly, substituted.
As the half wore on, Madrid still pressed, with long spells of possesion, but Jose Mourinho also recognised the threat of conceding a second, with Robin Van Persie missing two golden opportunities to put United ahead.
Mourinho brought on Modric and Pepe into the midfield, forcing Sir Alex Ferguson to respond by bringing on Ryan Giggs and Anderson to sure up their own midfield, as both sides erred on the side of caution in the final minutes.
Ronaldo scuffed a late chance in the six yard box, with the excellent Phil Jones putting enough pressure on for Ronaldo to mishit his shot, before it was scrambled away.
United will be happy with their display and the result, and whilst Madrid's dominance perhaps warranted a win, with United looking dangerous when they did get forward, a draw was probably a fair result, and certainly makes the secoond leg at Old Trafford an even more enticing prsopect.