Substitute Papiss Cisse struck twice as Newcastle United secured a 2-1 win to end Chelsea’s 23-game unbeaten run in all competitions.
The Senegal international fired home four minutes after coming on in the second half before adding what proved to be a decisive second goal with 12 minutes to play, ensuring Jose Mourinho has still never masterminded a Premier League win at St James’ Park.
Chelsea dominated the first half but failed to find a way through, with Willian and Cesc Fabregas both wasting good chances.
They were made to pay after 57 minutes, as Cisse netted his sixth league goal of the season by tapping home Sammy Ameobi’s cross.
Cisse then doubled Newcastle’s advantage, and although Didier Drogba pulled a goal back after Steven Taylor had been sent off for a second bookable offence, for the second time in the space of a week Chelsea dropped points in the North East.
Defeat enables Manchester City to close the gap to just three points if they beat Everton later on Saturday.
Newcastle were able to celebrate a shock victory in which goalkeeper Jak Alnwick made some vital saves after coming on to make his debut at half-time following an injury to Rob Elliot.
Alan Pardew rang the changes after Newcastle’s draw at Burnley on Tuesday, with Fabricio Coloccini and Remy Cabella two of five players coming in.