Denis Zakaria (Switzerland)
Sergej Milinkovic-Savic (Serbia)
He has been linked with a multi million move away from Lazio to Manchester United this summer and its not hard to see why. Brilliance at club level has given way to enigma status for his country, though. Slavoljub Muslin, the manager who guided Serbia to qualification for this World Cup, was relieved of his duties in November largely because he did not fit Milinkovic-Savic into his system. Mladen Krstajic, his successor, is unlikely to make that mistake this summer and if things click straight away the world could see a potential superstar talent come of age.