Manchester United boss Sir Alex Ferguson says they face Liverpool tomorrow in excellent form.

United are seven points clear at the top of the Premier League and are on a run of eight league wins and one draw since November.

Ferguson said: "The form we're in means we are going into it in the right frame of mind.

"But derby games can change that. Liverpool will always be difficult to beat, no question. To be honest I'm quite happy to play badly - and win this one."