January transfer window: Top five signings for Arsenal including Luis Suarez and Real Madrid ace

2. Hakan Calhanoglu, Hamburger SV

Many could be forgiven for not having heard of this Bundesliga wonderkid, but with four goals already this term and a string of impressive performances that might change soon.

The attacking midfielder has burst onto the scene at Hamburg this campaign and is versatile in the middle of the park.

Source: Daily Mail.