Chelsea were stunned on New Year's Day by London rivals Tottenham Hotspur after the latter recorded a crushing 5-3 defeat over the former at White Hart Lane.
A brace by Harry Kane coupled with strikers from Danny Rose, Andros Townsend and Nacer Chadli proved too much for the Blues, who were only able to pull back three goals through Diego Costa, Eden Hazard and John Terry.
The game started with the Blues taking an early lead through Costa in the 18th minute following some good work from Hazard.
The Belgian, after gliding past through left-back Rose, fired an effort that struck the base of the post. The rebound found Oscar and the Brazilian immediately sent the ball across the face of the goal allowing Costa to find the nets with the simplest of tap-ins.
The Blues got a very good chance to double their advantage through Oscar in the 25th minute but the Brazilian wasted the opportunity as he steered the ball wide of the target.
This miss proved to be very costly for Chelsea as the Spurs soon levelled the scores through Kane, who, after receiving possession from the deep, did brilliantly to evade the Blues defence and find the nets with a strike into the bottom left corner.
Things went from bad to worse for Chelsea in the closing stages of the first half as the Spurs scored two goals in quick succession to leave Premier League leaders in total dismay.
While Rose fired home from the rebound after Chadli's brilliant effort came off the post in the 44th minute, Townsend doubled the Spurs lead from a penalty after Gary Cahill brought down Kane inside the box in the first minute of added time.
Things did not improve for the West London club in the second half as Kane grabbed his second and tripled Tottenham's lead in the 52nd minute. The 21-year-old forward, after collecting possession near the edge of the box, turned away from Nemanja Matic to slot the ball effortlessly past a helpless Courtois.
Chelsea managed to pull a goal back at the hour mark through Hazard, who found the nets with relative ease after exchanging some good passes with Cesc Fabregas.
The Blues again got a chance to pull another goal back in the 75th minute through Cesar Azpilicueta but goalkeeper Hugo Lloris came to the Spurs' rescue as he made an excellent save to deny the versatile fullback.
The West London club's hopes of saving the match completed evaporated in the 78th minute as Tottenham grabbed their fifth goal of the night through Chadli, who, after being fed a pass by Kane, made no mistakes as he slotted the ball past Courtois.
Terry was able to pull another goal back for Chelsea in the 87th minute, but his strike only turned out to be a consolation as the Spurs sealed the three points with a comfortable 5-3 score line.
