9) Douglas Costa (Shakhtar Donetsk)
A skillful Brazilian winger, Douglas Costa has come onto Arsenal‘s radar recently after going AWOL in France during Shakhtar Donetsks’s pre-season tour. The 23-year-old is an exciting talent who would certainly add plenty to the Gunners’ attack, and his ability to play in a number of different attacking positions will no doubt appeal to Arsene Wenger.