Manchester United's position at the top can be attributed to the safe hands of goalkeeper Edwin Van der Sar.

However, whereas rivals Liverpool have suffered a similar problem and dropped points in the title race, the Red Devils' frugal defence has ensured they have maintained momentum.

It was their seventh 1-0 victory in 12 matches in all competitions and also a 12th successive Premier League clean sheet.

Another 90 minutes without conceding a goal meant Edwin van der Sar has now overtaken the league record of 1,104 minutes set by Reading's Steve Death in 1979.

The Dutchman's tally now stands at 1,122 minutes and on their current form he could well extend that at West Ham next week.

Arsenal's Samir Nasri was the last player to score against Van der Sar way back on November 8.

Sir Alex Ferguson said the consistency and excellence of the 38-year-old goalkeeper had made his team's job in overhauling Liverpool at the summit much easier.

"Edwin brings absolute calm and assurance to the players in front of him," said the United boss.

"Because of that experience over the last 12 games we have changed he back four I don't know how many times [and not conceded] and that says a lot for every player who has come in and done a job.

"You have to give great credit to Edwin but there have been some great performances; Nemanja Vidic is an absolute warrior, he's been unbelievable.

"The important thing is to keep our record of winning and keep our form going."

Van der Sar also drew plenty of praise from his team-mates.

Ronaldo, who for so long has hogged the limelight at Old Trafford, was pleased to see someone else receiving recognition.

"It's unbelievable. Edwin deserves it; he's a great man, a great goalkeeper. He works a lot - for his age! - and I'm really happy for him," he said.

"Not just for him, the whole team, all the lads, especially the defenders, who support him a lot."