Arsenal vs Manchester City 0-2: Five Talking points 

Defence still a worry for Arsenal

Arsenal FC v Manchester City - Premier League

Bellerin hasn't had the most convincing pre-season, Mustafi is still prone to the occasional error and Sokratis looks a little immobile at times. But above all, the-left back position is probably the biggest cause for concern. Kolasinac is facing a spell on the sidelines and even with Nacho Monreal fit, while he is generally dependable, it cannot be denied that he's not always convincing; especially when up against pace and trickery. Ainsley Maintland-Niles is always a good back-up, but is he competent enough to push for a starting role ahead of Monreal. If yes, does he have the potential to be a world class left-back, rather than just an above average makeshift one. Not to forget that this is not even is preferred position. A lot of questions still remain unanswered.