Despite a very unconvincing performance, Chelsea managed to beat their North London rivals 2-0 and now hold a four point lead over Manchester City and five over Manchester United, their rivals in the title race.
Chelsea didn't start the match well and allowed their opponents to control possession and create some dangerous chances. However, as per usual, Drogba scored a magnificent goal in the 39th minute (his 13th goal in the last 11 matches against Arsenal), even if Chelsea hadn't done much to justify it.
Carlo Ancelotti can thank God (or Abrahimovic's money) that he has one of the best strikers in the world, otherwise Chelsea would probably have struggled to get the lead.
In the second half, Chelsea intentionally sat back and repeatedly tried to hit their opponents on the break. However, Chelsea players weren't exactly inspired today (except for Ramires, who had a fabulous performance) and failed too many decisive passes.
It looked like the match was doomed to end 1-0, but in the 85th minute, in a moment of sheer brilliance, Alex scored an absolutely superb goal from a free-kick, a goal very much like the one he scored two seasons ago in the quarter-finals of the Champions League against Liverpool in a 4-4 thriller (except that today's goal was from a closer distance).
It was all over. All in all, a deserved victory for the defending champions, who, despite an average performance, managed to make the most of their chances. When the Premier League restarts in two weeks (after the internation league), Chelsea will hold a pretty comfortable over their two rivals of Manchester.
It seems that Chelsea are on their way to win the Premier League again, but Chelsea fans shouldn't celebrate just yet: after all, in the only real test they had up to this point, they lost at Manchester City.
City and United haven't still hit top form and they certainly have what it takes to fight with Chelsea for the title. That said, Chelsea fans have every reason to be happy with their team's results thus far, but the league is far from over. United and City haven't thrown in the towel yet.
As for Arsenal, today's defeat was expected and in no way does it affect their top-four ambitions.