Premier League player ratings [Arsenal]: Brighton vs Arsenal

Brighton & Hove Albion piled further pressure on manager Arsene Wenger as Arsenal succumbed to their third straight Premier League defeat.
The Gunners once more lacked discipline in the defensive department, and it ultimately came to haunt them with goals from Lewis Dunk and Glenn Murray handing the Seagulls a 2-1 triumph. Pierre-Emerick Aubameyang tapped in the consolation for the Gunners, prior to the half-time break.
Player Ratings:
Petr Cech: Another average performance from the Gunners number one, who seems to have caught up with his trailing age. The Czech was at blame for the second goal, in particular, where he failed to stop Murray’s headed-effort which was within his grasp – 4/10
Calum Chambers: Brought into the lineup ahead of Hector Bellerin. The Englishman lacked the attacking presence of his counterpart, and struggled to find the final cross on a number of occasions. Was behind the eight ball with José Izquierdo tending to be a menace on the left side of the attack – 5/10
Sead Kolasinac: The Bosnian played in place of the injured Nacho Monreal, but he did little in the attack front. The left-back should have been sent off for a reckless challenge on Ezequiel Schelotto in the second period, and was lucky to have escaped without a second yellow – 5/10
Laurent Koscielny: The captain has come under stick for the lack of organisation, and he probably has to take part of the blame for another lacklustre display on the road. Had a tough afternoon with Murray posing a physical threat throughout – 5.5/10
Shkodran Mustafi: The German has likewise dropped off since the League Cup final, where he was largely at blame for the opening goal. Mustafi took the responsibility of defending against Murray prior to Brighton’s second, but failed to stop the cross – 5/10
Jack Wilshere: Despite not producing a scintillating attacking display, Wilshere tried his best to get the Gunners back into the game with his tireless intrinsic passing. Unfortunately his teammates were not in sync – 6/10
Granit Xhaka: Another average performance from the Swiss international, who has surprisingly been ever-present in the Premier League. Xhaka lacked the mobility whilst defending Brighton’s efforts, especially from set-pieces. Assisted Aubameyang’s goal.- 5/10
Alex Iwobi: The Nigerian has one of his days to forget. The left-sided winger was largely a passenger over the course of the game, and he was eventually substituted for Danny Welbeck in the second period – 4.5/10
Mesut Ozil: Ozil tried to find an outlet with his passing game, but unfortunately his decision-making was just too slow. The German had one genuine attempt on target which Matt Ryan intercepted – 5.5/10
Henrikh Mkhitaryan: Probably the second-best player on the pitch after Aubameyang. The Armenian tried to make something out of the possession, but could not find the key pass for his striker to take advantage of – 6/10
Pierre-Emerick Aubameyang: The Gabon international had limited service upfront, but he made the most of his chances. Scored the opening goal with a lovely tap-in, and nearly setup his teammates for the leveller – 6.5/10
Substitutes:
Danny Welbeck
Eddie Nketiah
Hector Bellerin