Ahead of Manchester United's Premier League visit to fierce rivals Liverpool on Sunday, a look back at five classic encounters between the teams.
Manchester United 2 Liverpool 1, FA Cup final, May 1977- Liverpool were the emerging force in English football and were embarking upon a stellar run of success that would see them dominate both at home and abroad throughout the late 1970s and 1980s.
Having already defended their league title and with a European Cup final against Borussia Moenchengladbach to come, they took on United at Wembley bidding to become the first English side ever to secure the Treble.
United had been surprisingly beaten by Southampton in the previous year's final but a shot from Lou Macari that deflected off team-mate Jimmy Greenhoff's chest earned them a 2-1 win that denied Liverpool their place in history.
Liverpool 3 Manchester United 3, Premier League, January 1994- Manchester United had ended a 26-year wait for the English league title in the 1992-1993 season and they travelled to Anfield the following January with 12-point lead over Blackburn Rovers at the league summit.
They roared into a 3-0 lead within 24 minutes thanks to strikes from Steve Bruce, Ryan Giggs and a Denis Irwin free-kick but Liverpool responded with a Nigel Clough brace before Neil Ruddock headed home a dramatic equaliser.
Manchester United 2 Liverpool 2, Premier League, October 1995- A match marked by the return to competitive action of United's talismanic striker Eric Cantona, after his eight-month ban for assaulting an opposition fan during a game at Crystal Palace in January.
Within two minutes he had teed up Nicky Butt for the game's opener and he had the last laugh with a 71st-minute penalty after Robbie Fowler had threatened to steal his thunder with a finely taken double.
Manchester United 2 Liverpool 1, FA Cup fourth round, January 1999- Almost 22 years after their FA Cup final encounter, United were the team pushing for honours on three fronts.
Michael Owen -- who is now with United -- headed Liverpool into a third-minute lead in front of the Stretford End and Alex Ferguson's men looked destined for an early exit from the competition.
With two minutes to play Dwight Yorke produced a close-range equaliser and in injury time Ole Gunnar Solskjaer blasted home the winner, before repeating the trick against Bayern Munich in the European Cup final to make United England's first ever Treble winners.
Manchester United 1 Liverpool 4, Premier League, March 2009- United went into the last meeting between the sides seven points clear of Liverpool at the top of the table, having conceded just five goals at home all season.
But the myth of their defensive invulnerability was exploded against Rafael Benitez's visitors, with Fernando Torres inspiring a rout that thrust Liverpool firmly back into the title picture.