People spoke about the comeback from two goals down to win 3-2 at Aston Villa as being typical of Sir Alex's side.
However, it was only the fifth time during the manager's great reign that such a result was secured from a 2-0 deficit in a domestic game.
Can you recall the other four times United have bounced back from 2-0 down to win 3-2 in a domestic fixture during Sir Alex's tenure?
Check out the answers here.
More trivia questions: Earliest away goals at OT | Goalkeepers meeting the Reds | Oldest scorers in Premier League | Internationals at Old Trafford | Old Trafford penalties | England's seven Reds | Alan Hardaker Trophy winners | Scored against United | United stars at European Championship | Goals for England | The name game | Non-appearance at finals