#1: Andrey Arshavin

Ask any Arsenal fan about Arshavin's best performance in an Arsenal shirt and the 8 goal thriller between the Gunners and Liverpool will pop out as the answer. Arshavin took the Premier League by storm after scoring all four goals against Liverpool that day. However, it is the only beautiful memory we may ever remember related to the unlucky Russian.
Andrey Arshavin joined Arsenal after ten years with Zenit St, Petersburg in 2009 in a record deal worth £15 million. Yes, the Russian did get a handful of games in his four-year stint at the club. But then, what exactly ruined him?
Arshavin was born to play a no.10 role behind the striker. However, Arsene Wenger's tactically genius mind saw him playing on the left wing. Arshavin found it difficult to adjust to his new role and appeared slow and sloppy. Further, he made defensive errors while tracking back and was blamed harshly for goals.
Some players can adjust position changes while some aren't cut out to do it. Arshavin would have been way better playing as the spearhead of Arsenal's attack. But, playing on the left wing ruined his potential and he never reached his full potential at the Emirates.
Arshavin made 105 appearances and scored only 23 goals, rejoining Zenit in 2013. We could have seen a better Andrey Arshavin had he not been misused by Arsene Wenger.