United boss Sir Alex Ferguson has stated that he is looking forward to watch the Danish youngster in action, when the Red Devils face Ajax in the Europa League on Thursday night.
“Christian is a smart kid,” De Boer said.
“Of course maybe he will play for a big team like Manchester United in the future. But I think he wants to show what he is capable of in this kind of team.
“It would be better for him to stay until he was 25 because you learn a lot in the Netherlands.
“If you leave afterwards you are a more stable player and ready to play in the big leagues.”
