Ten-man Chelsea collapsed at Watford in the Premier League on Monday, as the home side prevailed 4-1 against the reigning champions.
The Blues lost Tiemoue Bakayoko after 30 minutes as the midfielder saw red for a second booking, and it was downhill for the visitors for the rest of the game.
The Hornets took the lead shortly before half-time as Troy Deeney smashed home a penalty after Blues goalkeeper Thibaut Courtois brought down Gerard Deulofeu.
Eden Hazard displayed his world-class quality as the Belgian wizard struck from distance in the closing stages, but Daryl Janmaat was the hero as he found the back of the net minutes later.