#7 Chuba Akpom
Akpom joined Arsenal at the age of 6 and looked like he would be a future star. He was a deadly goalscorer at a young age, but never managed to find the net during a first team game for the club.
After years of frustration and many loan moves to the likes of Hull City and Brighton Hove Albion, he left the club to join PAOK in the Greek 1st Division. It is unknown how much the deal was worth or if he was actually just released by Arsenal due to his lack of development in recent years.
This move has so far been a success for Akpom, with him now playing much more often. In the PAOK team he has even played in the Champions League, which was a rarity under Arsene Wenger.
I do not feel that at 23, he will be wanting to stay at PAOK for too long, though. I feel he will probably only stay at the club for a few seasons and then will try and attract the interest of a Premier League side. After all, at 23, he has a lot more to offer.