As Manchester United prepare to take on Chelsea in a mouth-watering FA Cup quarter-final tie at Old Trafford on Sunday, take a look back at some memorable encounters between the pair in this competition.
March 16, 1963, fifth round: Manchester United 2 Chelsea 1
The season where legendary trio Denis Law, Bobby Charlton and George Best first came together as Sir Matt Busby's United side defeated Chelsea en route to beating Leicester in the final. Goals from Law and Albert Quixall were enough to see United through, with Dennis Sorrell scoring a second-half consolation goal for the Blues.
January 15, 1979, third round: Manchester United 3 Chelsea 1
Goals from Steve Coppell, Jimmy Greenhoff and Ashley Grimes helped United ease past Chelsea into the last 32. Dave Sexton's men reached the final but were thwarted by a late Alan Sunderland goal in a 3-2 loss to Arsenal.
May 14, 1994, final: Manchester United 4 Chelsea 0
The first meeting of the sides in an FA Cup final ended in heartache for the Blues, as United completed an emphatic victory to secure their first domestic double. Two second-half penalties in six minutes from Eric Cantona and further strikes by Mark Hughes and Brian McClair steered the Red Devils to glory.
January 4, 1998, third round: Chelsea 3 Manchester United 5
An extraordinary tie which saw United's 5-0 lead with only 15 minutes remaining turn on its head, after goals from Graeme Le Saux and a Gianluca Vialli double raised the possibility of a remarkable comeback. But a brace apiece from David Beckham and Andy Cole and a solitary Teddy Sheringham strike prior to that proved enough for Sir Alex Ferguson's side.
May 19, 2007, final: Chelsea 1 Manchester United 0
A contest that dragged into extra-time was finally settled in the 116th minute by Chelsea striker Didier Drogba. It was the first final at the new Wembley Stadium - and one which saw the Blues claim their fourth FA Cup crown.