Fergie refuses to worry about Chelsea

Manchester United maintained their six-point lead over champions Chelsea with a 2-0 victory over Charlton that had Sir Alex Ferguson refusing to look over his shoulder as the Barclays Premiership title run-in takes shape.

Park Ji-Sung headed home after 24 minutes and Darren Fletcher made the game safe with a second.

Ferguson said: "We are playing well and with a lot of confidence Sometimes in these situations, there is a tendency to look over your shoulder and concentrate on the team that is chasing. I prefer to look forward because we have some really promising games coming up."

Chelsea saw off Middlesbrough at Stamford Bridge with two goals from Didier Drogba and an own goal from Abel Xavier keeping them in touch with the leaders.

The Blues have now won their last five games and Jose Mourinho wants his side to maintain the pressure on United.

Mourinho said: "I wanted Chelsea to win and win and win and, in the main, that is what we have done. Now we must keep on doing it."