Manchester United boss Sir Alex Ferguson concedes he is happy to continue rotating David De Gea and Anders Lindegaard despite the former's lofty price-tag and even loftier pedigree.

De Gea was brought to Manchester United in the summer for over £18 million in the hope the prodigiously able youngster would emerge as a worthy successor to the recently retired Edwin Van der Sar.

The Spaniard's career at Manchester United to date has been one of highs and lows, mixing eye-catching solidity with the occasional error, which although is inevitable given his fledgling career in England, it has certainly heightened the scrutiny which he was already under upon arrival.

While his promise is undoubted the 21-year-old has found himself in rotation with Anders Lindegaard, whose impressive form for Manchester United, with five clean-sheets in five games, has been a major asset for Sir Alex Ferguson this season.

The Manchester United manager has no concerns about the long term prospects of De Gea but believes the emergence of the aforementioned Dane is hugely positive for the club, and the Scot admitted he intends to continue with his rotation policy.

"It's not a problem because I think Anders has that little bit more experience. I felt his was the right time to change and we're going to do that with David." Ferguson told Manchester United's official television channel.

"He's only 20 years of age and is going to be a fantastic goalkeeper, there's absolutely no doubt about that.

"Having Anders as a back-up in terms of giving the lad a break at the right time, is proving its worth." The Manchester United supremo continued. "Anders is an outstanding goalkeeper and has a little bit more experience."

Lindegaard started Manchester United's 5-0 victory over Fulham in midweek but is likely to drop to the bench for the Red Devils' game against Wigan on Boxing Day.