Manchester United 0-1 Leeds United, 2010
The famous rivalry - now rarely enjoyed - served up a thriller at Old Trafford.
42 league places separated the sides before the tie, but it was Jermaine Beckford's goal that separated them after it.
League One side Leeds fully deserved their victory, too.
Simon Grayson's side showed nothing of the awe and fear that many enter the Theatre of Dreams holding, and they proved that as they took the lead within 20 minutes.
A valiant defensive display sealed the win as Sir Alex Ferguson was left even more red-faced than usual.