Manchester United boss Louis van Gaal has been answering questions on why loanee Radamel Falcao has been unable to capture the same form as his time in Spain. 'Why has he not been same player as when he was in Madrid?', the United manager is asked. "We are looking for the solution," said Van Gaal.

"Sometimes players can give fantastic performances in one country but not in another. It would not be the first time and it won't be the last."

On whether he can recapture his form the Dutchman replied: "At a club like Man United it is more difficult. He has competitors. He knows Wayne Rooney is playing there and scoring."

The Colombian striker played for United's under-21 side this week.

"I have read it was a humiliation," said van Gaal, when asked about it. "I do not think so. It is a professional attitude of the manager, the management, also the club and especially from the player.

"It is not only Falcao. Valdes and Rafael have also played.

"He has not reacted how the media say he has reacted although he didn't play very well".