Willian scored one and made two others as Chelsea finally turned in a display worthy of Premier League champions to win 3-1 at Huddersfield.
Chelsea boss Antonio Conte declared his side's title defence was over after Saturday's defeat at West Ham, but his players responded and goals from Tiemoue Bakayoko, Willian and Pedro secured them victory at a canter.
Town substitute Laurent Depoitre headed home a fine goal deep in stoppage time but it was a mere consolation for David Wagner's side.
Burnley climbed into the Champions League places as Ashley Barnes' late winner earned them a 1-0 victory over troubled Stoke.