Rio Ferdinand made his return to Elland Road, the home of his old Leeds club, in a tense match which tested his patience.
Ferdinand was booed and jeered every time he touched the ball.
To make things worse for him, Leeds took the points to go top of the table - if only for a while.
Harry Kewell's header from a magic Ian Harte cross went in on the 67th minute.
But it was keeper Paul Robinson who worked the hardest for the side. He made several brilliant saves to keep Leeds ahead.
Manchester Utd dominated most of the first half but just could not grab the win.
Ryan Giggs and Ruud Van Nistelrooy were close to scoring but were stopped by Robinson.
And there were two nervous moments in the first half when David Beckham looked like he elbowed Lee Bowyer. He was lucky to escape a warning.
Jonathan Woodgate pulled back Ole Gunnar Solskjaer in the Leeds' area and was lucky to not be cautioned too.