Kevin de Bruyne is being backed for success at Chelsea.
Franky Vercauteren, currently boss of Al Jazira Sports Club, coached de Bruyne at Genk for two years and told The National: "The Premier League is not like the Belgian league.
"It is very tough and hard, and in this league they don't have patience. So he has to get really good to succeed. He has the ambition and he will.
"He wanted to play more in the centre but I put him on the sides because he was not ready for that role. He has to get physically stronger and more aggressive, particularly in the Premier League. He is determined to play in the centre and he will eventually fit in to that role."De Bruyne signed for Chelsea last week before being loaned back to former club RacingGenk.