Manchester United boss Sir Alex Ferguson has insisted that it is too early to say the race for the Premier League title is down to just two clubs.
United currently have a one-point lead over Manchester City at the top of the league.
The Scot said: "It's early-season. It's only the end of November, so I don't think you can be certain by saying it's a two-horse race at this time.
"Over the years, we've always hoped the top five, or top six, are all capable of winning the league but eventually it ends up being a two-horse race.
"Year after year it's been like that, when you look at the space between the top two teams and the rest last year, the gap between ourselves and City. The important thing is you look at yourself. You need to stay up there all the time and this is not an easy league to do that."
Chelsea are closest challengers to United and City this season, trailing by six points in third.