Silva - 7
A rock in the middle of Chelsea's defence, saved Azpilicueta from an embarrassing own goal.
James - 6.5
Not as everpresent as in some earlier games, but provided an assist for Barkley's goal.
Kenedy - 6.5
Probably, Chelsea's best player in the first half. Provided an assist for Havertz's goal. Had to be subbed off early after the break due to an injury.
Havertz - 6.5
Scored an early goal and had more chances in the first half. Less noticeable after the break.
Sarr - 5
Came on in the second half. Should've done better when Watford scored their goal.
Barkley - 7
Came on after 65 minutes and was very busy testing the Watford keeper. Scored the injury-time winner.
The rest: Mendy - 6, Azpilicueta - 6, Rudiger - 6, Kante - 6, Saul - 6, Ziyech - 6, Mount - 6, Chilwell - n/a