Manchester United host Arsenal in their Premier League clash at Old Trafford with Arsene Wenger already under real pressure at the start of an already faltering campaign.

Rooney with a sumptuous cross for Welbeck, who sends a diving header wide at the far post. This is getting brutal for Arsenal now.

De Gea with a double save! The Spaniard gets down low to save from Arshavin's straight drive and then prevents Van Persie from converting from a tight angle with his legs.

This just sums up Arsenal. Comical defending, spurning a chance to get back in the game and then being completely outlcassed.

GOAL! 2-0 Manchester United! Traore heads clear and Ashley Young takes possession of the ball from 30 yards. He jinks one way and then the other to find space away from Coquelin and then scores with a wonderful curling effort into the top corner. Sheer class.

Well that might have been Arsenal's chance to get something out of this game gone. How disappointing for them.

Penalty saved! De Gea throws himself to his right and produces a fine save to deny Van Persie from 12 yards.

Evans is only booked.

Penalty to Arsenal! Walcott brought down by Jonny Evans!

What on earth are Koscielny and Djourou doing on a pitch if they can't even step in and head away when there is two of them against Welbeck? Honestly, that was so, so poor from two defenders who should know better.

Chris Smalling drills a shot wide of the far post as United go in search of a second. They scent blood here. No doubt about it.

That really was awful, awful defending from the two centre-backs. They were so weak.

GOAL! 1-0 Manchester United! Such a soft goal. Koscielny heads clear from an Evra free-kick and Anderson collects possession. He lofts a cheeky pass over the top and both Djourou and Koscielny completely fail to deal with, allowing Welbeck to head past Szczesny.

Evra races away down the left and Arsenal's inability to deal with the Frenchman sparks a heated argument between Walcott and Jenkinson.

Coquelin produces a fine tackle in midfield and when the ball finds Walcott on the edge of the box, he makes space before dinking a cross into the middle of nowhere.

Cleverley is forced to receive treatment as he is bleeding after being caught in the face by a stray arm from Rosicky. It wasn't deliberate.

Van Persie swings in a corner from the right and Laurent Koscielny rises at the back post. However, his header flies high and wide.

Jenkinson slips when shaping to cross. However, he recovers and does get the ball in the box, only to see no Arsenal shirts in the near vicinity. Since when did Arsenal get players in the box though?

Nani absolutely embarrasses Arshavin with some Garrincha-style skill but the Russian recovers to turn the ball behind for a corner. Arsenal clear from the set-piece.

Arshavin sends Jones sprawling when leaving his leg in as the United defender plays the ball away. That was a dirty challenge and Jones is down hurt. He hobbles away though.

United construct a lovely passing move but fail to penetrate the Arsenal defence. Rosicky is then guilty of a poor pass as United threaten to test Szczesny again.

Arsenal indulge in some intricate passing in and around the United box that results in Walcott dragging a poor shot wide of the post. Robin van Persie should have shot earlier in the move but took a touch too many.