Arsenal 0-3 Chelsea

Premier League leaders Chelsea left Arsenal's title challenge reeling by beating the Gunners to increase the gap to 11 points on their London rivals.
Striker Didier Drogba guided an Ashley Cole cross into the top corner to put the visitors ahead. 
Another Ashley Cole delivery was then diverted into his own net by Arsenal defender Thomas Vermaelen. 
Drogba put an elaborate seal on a deserved victory when he powered in a 25-yard free-kick late on. 
Arsenal boss Arsene Wenger had said the game was a moment for his players to show their strength but, instead, the defeat only served to blow a massive hole in his side's title hopes.
Chelsea, however, move five points clear of Manchester United at the top of the table and have now kept clean sheets in their previous six Premier League matches. 
The last time Arsenal had been beaten at home was by Chelsea in May and, despite five free-scoring wins at the Emirates Stadium so far this season, the Blues again showed their power was superior to Arsenal's panache.