The loss means that their lead at the top of the table is just three points.
Carlo Ancelotti’s side face third placed Marseille next weekend, just five points clear of them.
What is your opinion? Feel free to discuss the article under. You have to comment by using your Facebook profile. Be fair and have respect for other people and opinions!
Chelsea have struggled to build momentum in the opening stages of the campaign and are currently looking over their shoulders at the relegation zone.
Who of Europe’s top strikers will move to England this summer?