Manchester United coach Sir Alex Ferguson reckons another 21 points will be enough to clinch the Premier League title as they fight it out with Arsenal and Chelsea.

"Over the last few years, it's been around 89 or 90 points. I think the most has been 92," Sir Alex told Inside United magazine.

"This season it looks like around 85 is the target to aim for."

Arsenal are one point ahead with 65 points with Manchester United one point behind with 10 games to play while Chelsea are seven points behind with 11 games to play.

Sir Alex added: "The big clubs are taking points off each other and sides outside the top three are getting stronger and causing a few upsets. I think 85 will be enough to win it.

"I said in January that it would be a tight finish and that's still the case."