Sir Alex Ferguson insists Manchester United can take advantage of their great start to the season to build momentum in their quest for the title.

Man United are gunning for their fourth consecutive Premier League trophy and are now second in the league table below Chelsea.

The Red Devils visit the Blues at Stamford Bridge on Sunday as Ferguson's men look to redeem themselves against a fellow big four side after their 2-0 loss to a struggling Liverpool side.

However, Ferguson admits that there will be pitfalls along the way to the promised land and the wily manager has even called the Premier League a 'difficult' competition to win.

"It is a tough league. We are experienced enough at this club to know how difficult it is to win the league," he said.

"It is not going to be any different this year. The great thing about us is that we know it is a difficult league.

"Mistakes are going to happen - you lose games you do not expect to lose. You go for consistency - and if we are in there in January we have a great chance."