LONDON: Chelsea showed no mercy in extending their Premier League lead to six points yesterday, brushing aside promoted Norwich City 4-0 while second-placed Everton were held to a 0-0 draw at Blackburn Rovers.
First-half goals from Damien Duff, Frank Lampard and Arjen Robben and a superb Didier Drogba header late on handed Jose Mourinho's side a comfortable win at Stamford Bridge.
