The English football champions Chelsea have been humbled 3-1 by London rivals Arsenal at the Emirates Stadium as the Blues' form slump continues.
It's the first time in six local derbies that Arsenal have beaten Chelsea, the win moving the Gunners back up to second in the Premier League behind Manchester United.
Alexandre Song scored just before half-time and skipper Cesc Fabregas made it 2-0 following the break after being slipped in by Theo Walcott.
Then inside two minutes Fabregas sealed the points, returning the favour with a delicate chip pass to Walcott for Arsenal's third.
Chelsea defender Branislav Ivanovic got one back five minutes later with a header off Didier Drogba's free kick but their record remains just one win in eight.
