Chelsea have made one change to the side that drew with Atletico during the week. Marcos Alonso comes back into the side to replace Victor Moses, with Davide Zappacosta reverting back to the right flank.
Chelsea subs: Caballero, Rudiger, Pedro, Moses, Willian, Batshuayi, Ampadu.
CHELSEA (3-5-1-1): Courtois; Azpilicueta, Christensen, Cahill; Zappacosta, Fabregas, Kante, Bakayoko, Alonso; Hazard, Morata.
West Ham subs: Carroll, Sakho, Hernandez, Ayew, Hart, Fernandes, Rice.
WEST HAM (3-5-1-1): Adrian; Reid, Ogbonna, Cresswell; Zabaleta, Lanzini, Noble, Obiang, Masuaku; Arnautovic; Antonio.