Fourth-placed Chelsea are looking for a first win in four Premier League matches as they attempt to secure UEFA Champions League qualification.
Watford, who trail seventh-placed Wolverhampton Wanderers by four points, are aiming to keep their own European hopes alive with a first victory in three matches.
Team news
Watford's top scorer Troy Deeney has served his three-match ban and is available again.
Craig Cathcart limped off against Wolverhampton Wanderers last weekend and will be assessed, while Sebastian Prodl (knee) and Domingos Quina (shoulder) remain sidelined.
Did you know?
Chelsea are unbeaten in 11 home matches against Watford in all competitions and have won four of the last five PL meetings at Stamford Bridge.
Eden Hazard has had a hand in four goals in his last three PL matches against Watford, scoring the Blues’ last three strikes against them and adding an assist.
Watford have scored more PL goals against Chelsea in the last four seasons than against any other side, with 13, and more at Stamford Bridge than any other visitors, with seven.
Gerard Deulofeu has been directly involved in seven of Watford’s last nine PL away goals, scoring six times and providing an assist.
Referee: Paul Tierney
Assistants: Eddie Smart, Adrian Holmes
Fourth official: David Coote