8. William Carvalho (Sporting Lisbon)
Chelsea may well be keen to bring in further defensive midfield options given that John Obi Mikel is now something of a bit-part player and David Luiz, who was primarily used by Jose Mourinho in just such a role, has been sold to PSG. 22 year old Portuguese international Carvalho won’t come cheap but could challenge Nemanja Matic for a starting berth.