Less than a week after the horror against Bournemouth, the Chelsea champions had another failure.
Antonio Conte’s selection fell heavily by 1: 4 on their visit to Watford, which puts a serious question mark on the Italian coach at Stamford Bridge.
This historic triumph was the first match for Javier Gracia as Watford’s manager. The three points climbed Watford to 11th in the table, while Chelsea retained its fourth place, but only with a point ahead of the fifth – Tottenham.
Chelsea will meet West Bromwich in the next round, while Watford will see a new capital derby against West Ham.