2. Ilkay Gundgoan, Borussia Dortmund
Considered to be one of the most promising box-to-box midfielders in European football and at just 23-years-old would be a great signing for the future.
Gundgogan has been injured for much of this season, but has impressed over the past two years with Dortmund, helping them to a Bundesliga title and Champions League final.
Source: Daily Mail.