It all looked so good for the hosts after 11 minutes as they roared into a two-goal lead amid a boisterous atmosphere at Tottenham Hotspur Stadium.
But Chelsea proceeded to power back and clinch an inspired victory in their Premier League encounter.
Goals from Jadon Sancho, Cole Palmer (brace) and Enzo Fernandez saw The Blues respond superbly to pile more pressure on Ange Postecoglou.