3) William Carvalho – Portugal
Few had heard of the 22-year-old midfield powerhouse before this season, but after a series of domineering performances with Sporting Lisbon, Carvalho has earned himself a starting spot for Portugal, and the attention of both Manchester United and Liverpool. He has a £37m release clause, and if he takes the World Cup by storm, that’s probably what the Premier League giants will expect to pay.
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