Already some trouble for Arsene Wenger even before the start of the season.
Arsenal will be without his central defender Per Mertesacker until the end of 2016. He got a knee injury during a friendly game against Lens. The German was not replaced during the game after his injury so unfortunately, he has to stop for 5 months at least.
Even if the period of absence has not been confirmed by the London club yet, the English media Sky Sports confirms a welcome return for 2017. After five seasons with the Gunners, the defender of 31 years will have to fight to regain a first-team player position in the central hinge. Especially since Arsenal have already strengthened their defense... With the beginning of the championship Saturday, August 13th, Wenger will have to find the right adjustments and hope to win a title that has been fleeing from the Gunners since 2004.
Per Mertesacker is capable of good as well as bad: