Sportsmail looks back at six other days Sir Alex will want to forget after derby thrashing

Manchester United boss Sir Alex Ferguson described Sunday's 6-1 home rout at the hands of Manchester City as 'our worst ever day'.

Here Sportsmail looks at six other league matches which did not go to plan for him - and the team which eventually won the title.

Newcastle 5 Man United 0, October 20 1996

Kevin Keegan's Newcastle blew United away at St James' Park. The Magpies had lost the Community Shield 4-0 earlier in the season but the same side got it right as Darren Peacock, David Ginola, Les Ferdinand, Alan Shearer and Philippe Albert found the target.

Title winners: Man United.

Over the line: Man United were hammered by Newcastle in 1996

Southampton 6 Man United 3, October 26 1996

A week after the humiliation at St James' Park, United came unstuck spectacularly again.

Oh when the Saints: Southampton famously beat the Old Trafford club 

After Eyal Berkovic gave Saints an early lead, Roy Keane was sent off, and Saints took over with an Egil Ostenstad hat-trick and further goals from Berkovic and Matt Le Tissier. David Beckham, David May and Paul Scholes replied for the visitors.

Title winners: Man United.

Chelsea 5 Man Utd 0, October 3, 1999

United goalkeeper Massimo Taibi gifted Chelsea's Gus Poyet a first minute goal - and the hosts never looked back as United's 29-game unbeaten run was emphatically ended.

Blue day: Poyet was on target as Chelsea smacked five past Fergie's side

United's hopes ended when Nicky Butt was sent off, with Poyet, Chris Sutton, Jody Morris and a Henning Berg own goal compounding a miserable day for Ferguson's men.

Title winners: Man United.

Man United 1 Liverpool 4, March 14 2009

Cristiano Ronaldo gave United a 23rd-minute lead but Fernando Torres and Steven Gerrard (penalty) turned things around before Nemanja Vidic's straight red card 15 minutes from time.

Four-star performance: Liverpool came from behind to beat their fierce rivals

The visitors made the man advantage tell in the closing stages, with Fabio Aurelio and Andrea Dossena netting.

Title winners: Man Utd.

Man United 1 QPR 4, January 1 1992

QPR stunned Old Trafford by taking a 2-0 lead inside five minutes through Andy Sinton and Dennis Bailey. Bailey made it 3-0 in the second half and completed his hat-trick after Brian McClair had pulled one back for United.

On the march: QPR won at Old Trafford in 1992

Title winners: Leeds.

Man City 5 Man Utd 1, September 23 1989

The last time City humiliated United was at Maine Road, with goals from David Oldfield (2), Trevor Morley, Ian Bishop and Andy Hinchcliffe meaning Mark Hughes' reply was of little consolation to United.

Five alive: Ian Bishop and Paul Lake celebrate City's win back in 1989 

Both teams finished the season in the bottom half of the table - a whopping 31 points off top spot.

Title winners: Liverpool.