Chelsea secured their first victory in Guus Hiddink’s second spell as boss to move six points clear of relegation with a deserved win at Crystal Palace.
Oscar put the Blues ahead against the run of play, tapping home after being put through by Diego Costa.
Once they scored Chelsea dominated, deservedly doubling their advantage with a spectacular Willian strike.
Costa sealed the win with a tap-in for a goal his performance deserved after Palace failed to clear Willian’s shot.
The one disappointment for Hiddink was the injury to Eden Hazard, which ended the Belgian’s match after just 15 minutes.
The Blues’ four-match run without defeat is their longest this season and moves last year’s champions to 14th in the league, still 13 points adrift of a Champions League spot while Palace despite the loss are 7th on the table.