Eden Hazard has once again been dropped, with Hiddink in charge for the first time.
Hazard was out for the 3-1 win over Sunderland, after picking up a hip injury in the loss to Leicester.
Hiddink also dropped Kurt Zouma and prefers Terry and Cahill in the heart of defence.
CHELSEA: Courtois; Ivanovic, Cahill, Terry, Azpilicueta; Fabregas, Matic; Willian, Oscar, Pedro, Diego Costa.
SUBS: Begovic, Baba, Zouma, Mikel, Ramires, Hazard, Remy.
WATFORD: Gomes; Nyom, Britos, Cathcart, Holebas; Capoue, Watson; Abdi, Deeney, Jurado; Ighalo.
SUBS: Arlauskis, Prödl, Behrami, Anya, Guedioura, Berghuis, Diamanti.