Chelsea beat Manchester City 1-0 to hand them their first home Premier League defeat of the season.
City had won 11 out of 11 at home in the league before Chelsea's visit and knew another a victory over Chelsea would have seen them take over Premier League leaders Arsenal and return to the top of the table.
Chelsea produced a counter-attacking masterclass to take advantage of City's natural attacking instincts, and Branislav Ivanovic's first-half goal gave them a deserved win.
It was the first time City had failed to score in a home league match since November 2010, The BBC sports reports.
Chelsea now stands just two points behind leaders Arsenal and only adrift of City on goal difference.
The win over City carried the Jose Mourinho trademark of meticulous planning and coaching brilliance.
