Manchester United boss Sir Alex Ferguson turned up the heat on ref Howard Webb ahead of tomorrow's blockbuster with Chelsea.
Ferguson says a series of key decisions have gone against his team in recent meetings with Chelsea.
And when asked if he was worried a major call could sink his side again, Fergie said: "That's definitely our big fear, to be honest. Howard Webb is definitely the best referee in the country. There's no doubt about that.
"We just hope it's our turn for a little bit of luck."
But Blues boss Carlo Ancelotti, whose side will replace United as leaders if they win tomorrow, refused to fall for Fergie's mind games.
The Italian declared: "You need two people to have a war and I am a pacifist. I have absolute trust in referees in England."
