And it was Liverpool loanee Fabio Borini that gave the away side the win – a win that may well have sent the title back to Anfield, especially after Sunderland also got a valuable point away to Man City in midweek.
The beaten League Cup finalists will start believing they can stay up now and their bid could well be helped by Liverpool who face relegation-threatened Norwich in the early kick off on Sunday.
After the game, a bitter Jose Mourinho aimed his frustrations at referee Mike Dean who awarded the 79th-minute penalty from which Borini scored.
He sarcastically congratulated the referee after seeing his 77-match unbeaten home record ended.
Chelsea are two points behind Liverpool having played a game more and the pair face each other in what’s billed as a title decider next weekend, although if Liverpool beat Norwich they will head into the game 5 points ahead of their rivals.
Man City are third, six points behind the leaders having played a game less. They face West Brom on Monday night.
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