Manchester United v arsenal 98/99 FA Cup (by dbfo)
Today marks the 12th anniversary of this classic manchester united performance. I remember the treble season mostly by the 2 goals in stoppage time in the Champions League final, but this FA cup semi final seems even more improbable:
captain gets red card
team concedes penalty (that would lose game) in stoppage time
individual solo effort by Giggs in extra time while playing with 10 men.