13. Leroy Sane (Schalke)
Manchester City target Leroy Sane, no less. The attacking midfielder was an unknown quantity before an unbelievable display at the Bernabéu against Real Madrid. Schalke's shock 4-3 win in the Champions League earlier this season saw the 19-year-old announce himself on the European stage, expect him to consolidate himself as one of the emerging talents over the next few years.