5. Mats Hummels – Borussia Dortmund
Linked with: Manchester United, Barcelona
The story: Two of the world’s biggest clubs race each other for the signature of one of the best centre-back’s in the world. Both sides need a defender, but he had previously expressed a desire to stay at Dortmund.
What will happen: He will go, most likely to Barcelona. Dortmund have sprang for young German stopper Mathias Ginter, which will almost certainly spell the end of the road for his spell with the former champions.