Alexis Sanchez scored on his return to the Emirates Stadium as Manchester United saw off Arsenal to reach the fifth round of the FA Cup and extend Ole Gunnar Solskjaer's winning start.
The two most successful sides in the competition's history played out an entertaining Friday night game as United secured a 3-1 win an an eighth straight victory for interim manger Solskjaer.
Sanchez and Jesse Lingard had set the visitors on course for victory before Pierre-Emerick Aubameyang pulled a goal back for the Gunners, only for substitute Anthony Martial to wrap up a comfortable win with a late strike.
Relive all the action below.
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76 minutes: Arsenal 1-2 Man Utd
Jesse Lingard is booked after a tussle with Lucas Torreira. It was perhaps his reaction to being penalised which saw him go into the referees book.
77 minutes: Arsenal 1-2 Man Utd
United look more threatening on the counter attack after the introduction of Martial and Rashford. Arsenal have to be super careful here.
78 minutes: Arsenal 1-2 Man Utd
Arsenal continue to dominate possession in United's half but the away side look fairly solid at present.
It's worth remembering that we're likely to have at least six minutes of added time at the end of this.
79 minutes: Arsenal 1-2 Man Utd
Paul Pogba plays a clever ball towards Rashford inside the Arsenal box but the England forward is offside.
82 minutes: Arsenal 1-3 Man Utd
That always looked like it could happen.
Arsenal lose the ball, Pogba carries the ball forward and unleashes a shot which Cech can only parry away.
Martial is on the end of it and slots home. Another counter attack, another goal. That could be game over.
84 minutes: Arsenal 1-3 Man Utd
Unsavoury scenes here. It's all kicked off deep inside the Arsenal half.
Kolasinac leans his head towards Rashford. Lingard seems to have absolutely lost it and is even shouting at some of the home fans.
Kolasinac and Rashford are both booked. Lingard gets away with it.
87 minutes: Arsenal 1-3 Man Utd
Jesse Lingard makes away for Phil Jones. A sensible decision from Solskjaer.
88 minutes: Arsenal 1-3 Man Utd
Replays may explain why Lingard was so angry at the Arsenal supporters. It seems an object was thrown in his direction by the home fans.
Ashley Young picked up the object to show the referee.
90 minutes: Arsenal 1-3 Man Utd
We're into 10 (TEN) minutes of added time at the Emirates.
Arsenal need a goal soon if they're to make a game of this, though.
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