Guus Hiddink has gone for experience as he tries to haul his new side away from the relegation zone.
Hiddink has restored Gary Cahill to the back four at the expense of Kurt Zouma.
The team to face Watford -
Teams, Chelsea, Courtois, Ivanovic, Cahill, Terry, Azpilicueta, Fabregas, Matic, Willian, Oscar, Pedro, Costa
Subs: Begovic, Zouma, Baba, Ramires, Hazard, Mikel, Remy
Watford: Gomes, Nyon, Cathcart, Britos, Holebas, Abdi, Watson, Capoue, Jurafo, Ighalo, Deeney
Subs, Prodi, Behrami, Guedioura, Berghuis, Anya, Diamanti, Arlauskis