Manchester United 1-2 Arsenal: 5 talking points

Danny Welbeck scored on his return to Old Trafford to seal Arsenal's progression into the semi-finals of the FA Cup. The Gunners beat 10-man Manchester United, who played, the final 15 minutes without Angel Di Maria, who was booked twice in the space of a minute.The Gunners took the lead in the first half thanks to Nacho Monreal's composed finish, but United got back immediately through Wayne Rooney's immaculate header. Just when it looked as though the game was going to finish in a stale mate, Welbeck capitalised on Antonio Valencia's slack back pass to score against his former club and send Arsenal through to the semis where they will face either Bradford or Reading.Here are the major talking points from the game:

#1 Michael Oliver\'s refereeing master class

Refereeing is a difficult profession on its own. After all, who would want strangers analysing in detail, how they did their job. It is sometimes made even more difficult by the atmosphere in certain grounds. Old Trafford is a difficult ground to referee in, in the best of times, but when you have more than 60,000 supporters screaming into your ear, criticising every decision you make, it can't be easy.

But, Michael Oliver showed that if you have the courage and single-mindedness to do your job and not bother about what others say, you can certainly succeed. On Monday, Oliver showed just why he is one of the best referees in England, whether it was penalizing players for simulation, letting the game flow or understanding the nature of certain tackles and the state of the game. While his decisions may not have been popular with the home fans, they were certainly right and that is what the referees are supposed to do.