Bernardo Silva was rejected by Manchester City as a teenager.
Super agent Jorge Mendes touted the Portuguese star when he was an emerging force at Benfica but City opted not to make a move.
In an extract from the book 'Pep's City: The making of a Superteam' published by Goal, it was revealed that Mendes had said: "You need to realise that Bernardo's going to become the best in the world."
He eventually joined the club for 43m.
Silva, 25, has emerged as one of City's most important players and was nominated on the long list for this year's Ballon d'Or.
