5 reasons why Arsenal will bounce back

Leno dives to fist the ball during the pre-season training.

3. Bernd Leno

Arsenal desperately needed a world-class goalkeeper and Unai had his answer to this problem. He signed Leno, who is one of the most underrated goalkeepers in the world.

As a matter of fact, he became only the third goalkeeper in Bundesliga history to keep clean sheets in his first three top-flight games.

Unai Emery has described Leno as a player with high quality and experience, and he is set to compete with veteran goalkeeper Petr Cech and Columbian international David Ospina for the starting position at the Emirates.