It was a thing of beauty.
Eden Hazard picked up the ball on the halfway line with nothing on.
[ VIDEO: Premier League highlights ]
He surged past Francis Coquelin with the Arsenal midfielder all over him, then cut inside Koscielny and another Arsenal defender before tucking him past Cech.
2-0 to Chelsea a Stamford Bridge erupted.
Click play on the video below to watch a sublime goal in a massive London derby.