Drogba has now scored 13 goals in 13 matches against Arsenal
Soccer Extreme : Chelsea extended their lead at the top of the Premier League to four points as goals from Didier Drogba and Alex gave them a hard-fought win over Arsenal.
Drogba stole in at the near post to convert Ashley Cole's cross at the end of a tightly-contested first half.
And Alex hammered in a 35-yard free-kick to seal the victory late on.
Arsenal had periods of dominance but they rarely tested Chelsea keeper Petr Cech, who did produce one superb save from an Andrey Arshavin shot. (bbc, photo: AFP)