Manchester United boss Sir Alex Ferguson admits new goalkeeper David De Gea will need to time settle.
The Spaniard arrives from Atletico Madrid as United's new No1.
Ferguson told the Daily Mail: "The only area is the goalkeeping position. De Gea is 20 years of age. He's young and he's played in the Spanish league for a couple of years but it's not the English league.
"I think he will need time to settle. The potential is enormous, it's absolutely unbelievable, and he'll improve himself. I've got the boy Anders Lindegaard, too. They may both challenge for it but in time the boy De Gea will be in position (to take the No 1 shirt), there's no doubt about that."
