Michy Batshuayi scored two late goals to save Chelsea FC blushes against stubborn Hornets in the wake of coming in as a substitute for Morata to ease the pressure on Antonio Conte at a time they sought heading for a third successive Premier League defeat.
Chelsea takes an early lead when Pedro twisted home the most delightful first-time strike from outside the 18-yard box.
Watford‘s pace and possession were causing the Blues some serious issues in the defense and they deservedly drew level in the stoppage minutes of first-half with Abdoulaye Doucoure expertly pressing in an astonishing 10-yard strike at the near post.
Chelsea issues proceeded after the break and Richarlison ought to have put Watford ahead, but the Brazilian screwed wide from two yards out in front of an empty goal.
The visitor were not to be denied their second and on 50 minutes Richardson played in Roberto Pereyra and the former Juventus forward beat Thibaut Courtois with a perfect wrap up to make it 2-1.
Richardson had an extraordinary opportunity to make it three as the stubborn Watford kept on breaking Chelsea’s defence but he miscalculates his header from short range and the ball went wide.
Batshuayi was introduced for the ineffective Alvaro Morata with Willian also coming on and Chelsea began to enjoy more of the play. The Belgian fired in an inch-culminate header from 10 yards after a period of dominance, Cesar Azpilicueta handed Chelsea lead back in the 87th minute before Batshuayi put the icing on the cake when he dinked in his second goal in the final minute of stoppage time.