Jose Mourinho’s Manchester United was in electrifying form as they played some brilliant counter attacking football to sink Arsenal at their home ground.
Arsenal brought upon their doom after catastrophic errors by defenders Shkodran Mustafi and Laurent Koscielny helped United go two goals up through Antonio Valencia and Jesse Lingard in the opening 15 minutes.
Arsenal kept most of the possession of the ball and soon fought back with a rather wonderful goal from AlexandreLacazette. But despite the high possession, Arsenal failed to break down David De Gea and United, who made at least 14 world class saves.De Gea's super-human reflexes kept United ahead. His save from Alex Iwobi was brilliant, but the double stop to deny Lacazette low to his right and then fling out a boot to stop Sanchez's rebound was extraordinary.
Manchester United countered with pace and purpose. Lingard hit the woodwork after Cech came out to meet him but he sealed the game midway through the half when he, Lukaku and Pogba combined before he tapped in from six yards for his first Premier League brace.
The result looked secure but the drama didn't stop. Pogba was sent off with Mourinho complaining: 'He is frustrated. Everyone knows he is a clean player. I am a bit disappointed with his colleague Koscielny with his reaction.'
United felt Koscielny should also have gone later for a tug on Lukaku but Wenger also had his own gripe, a trip on Danny Welbeck not producing a penalty.
Arsene Wenger could hardly disguise his fury as Arsenal's defensive Achilles heel saw their 100 per cent home record finally come to an end in the hands of Jose Mourinho’s Manchester United.