'Schoolboy' Mustafi slammed by Keown as Arsenal defender's shambolic showing dents top-four bid

Shkodran Mustafi has been slammed by former Arsenal defender Martin Keown for his latest “schoolboy” showing which has dented the Gunners' bid for a top-four finish. More questions of his value to the cause are being asked on the back of a 3-2 defeat to Crystal Palace. Mustafi is considered to have been at fault for all three of the Eagles' goals, with the 27-year-old struggling with the basics expected from a player of his standing.