Manchester United legend Sir Bobby Charlton says Sir Alex Ferguson has total confidence in David De Gea.

Charlton acknowledges De Gea has had his problems in his first season in England.

"Our goalkeeper is a very humble boy with a great work ethic and scope for improvement. He has been having some physical problems adapting to the Premier League but I know what Sir Alex Ferguson thinks about him. I know that he wholeheartedly believes in him and everyone can be sure that David De Gea has a great future in goal at Manchester United," said Charlton.