Watford: Will Hughes, Andre Gray, Sebastian Prodl and Adalberto Penaranda remain out injured but there are no fresh concerns for Javi Gracia.
Chelsea: Alvaro Morata is back fit but Andreas Christensen is still a doubt for the London side.
Gracia: That was a good game. It was my first home game and it was special. But it's the past. Now is another game. It's different. We know it will be very demanding for us because we are playing against one of the best teams in the league. It's not easy because they have a very good mechanism to attack, and they have very good players with different options."
Sarri: The match is difficult. We know we have to study this kind of opponent very well [but] I think that now the most important thing is our reaction after the [Leicester] match. In the match our reaction was not in the right way and now we have to think about our reaction after the match, just in order to prepare in the right way. We will prepare a video for the individual mistakes. I want to speak with the group first of all and then I want to speak with three, four, five players.
Did you know?
The last four Premier League meetings have featured 21 goals.
Chelsea have lost three of their last six in the league.
Score prediction: 1-3
Watford possible XI: Fabianski, Zabaleta, Balbuena, Diop, Masuaku, Noble, Rice, Snosgrass, Anderson, Antonio, Hernandez
Chelsea possible XI: Kepa, Azpilicueta, Rudiger, Luiz, Alonso, Kovacic, Kante, Jorginho, Willian, Pedro, Hazard