Jose Mourinho has warned that there could still be several more twists in the title race following an afternoon which saw Chelsea move seven points clear at the top.
The Blues overcame a resilient Aston Villa side 2-1 in the Midlands to punish champions and nearest rivals Manchester City for being held 1-1 at home to Hull City.
Mourinho has admitted that he enjoyed the City result, but has stressed that the unpredictability of the Premier League could yet scupper his own team.
"It is one more hurdle in the title race, but there are many more," he told BBC Sport.
"Every game is difficult. It is possibly the only league in Europe where teams from the bottom can play against the top ones and not just make things difficult but win points.
"I like [that Man City lost] but that was not my concern today. I was never in the game asking for that result. We have to think about us and focus on our matches."
Branislav Ivanovic scored the winner at Villa Park after Jores Okore has cancelled out Eden Hazard's opener.
