3) Koscielny is irreplaceable
Who would have thought that player playing in the 2nd tier of French league could be a future star in 3 years!? Astonishing!! Laurent Koscielny is one of the best defenders in the English football today. Very few are as quick as him. His ball intercepting ability is 2nd to none. He never hesitates to put a sliding tackle.
Since the beginning of his journey he failed many a times but he stayed strong, worked hard and now he rarely makes wrong decisions in the match. If people have seen his progress, then they would have surely noticed that this player has improved in his passing ability and can spread the game with accurate cross field balls.
In premier league, his pass completion rate is around 92%. Even a midfielder would be envy of that statistics. So, it’s down to the Koscielny and Mertesacker to lead the Gunners title charge from the back.