Sir Bobby was giving an interview and as far as he is concerned, De Gea will come good.
He said: "Nobody knows for certain that they are going to play. Alex is a genius in that respect. It`s fantastic the way he does it."
"But I think he will be okay. I`m not worried about him."
"He`s a fantastic shot-stopper, very agile and kicks and throws the ball well."
"The boy obviously has a gift, and Alex has seen this. He`s a great goalkeeper and that won`t change."
"Maybe it`s just a little bit of confidence and he`s not where he wants to be in terms of that."
"It`s a big change for him personally, moving to England, and he`s also got to try and remember all these new players."
"And when you`re at a football club you can`t forget anything. If you do, then you reap the whirlwind, I`m afraid."
"I don`t know how goalkeepers think because I was never one myself. In fact I would have hated to have been a keeper."
"But we`ve had a lot of good goalkeepers at united, and a lot of them have improved once they`ve come to the club."
"David is living in a hotel at the moment; he`s come to a new country."
"He`s Spanish and maybe the goalkeepers get treated a bit differently over here than they do over there."