Former Arsenal defender Martin Keown does not believe the side's current crop of defenders are good enough.

With manager Unai Emery attempting to play an intense, pressing game combined with retaining possession, there is a lot of pressure on the defense.

Players may find themselves exposed high up the pitch, which Keown worries is something they may not be able to handle.

"Emery now has his chance to reflect during the international break." Keown said in the Daily Mail.

"This is a period of calm for the new head coach.

"If I was in his staff, I'd be saying we need to consider making a change to the system.

"Arsenal's centre-backs Shkodran Mustafi and Sokratis [Papastathopoulos] aren't really the best in possession of the ball."