Both Andreas Christensen and Christian Pulisic, injury doubts ahead of this game, start.
There are two changes from our most recent Premier League game, the win at home to Manchester City.
Frank Lampard reverts largely to that side having made changes for the FA Cup game at Leicester but today Mateo Kovacic is preferred in midfield to Mason Mount and Tammy Abraham rather than Olivier Giroud leads the attack.
Fit-again Callum Hudson-Odoi returns to the bench.
For West Ham there is no Mark Noble so Manuel Lanzini plays and Angelo Ogbonna come into their defence.
Chelsea Kepa; Azpilicueta (c), Rudiger, Christensen, Alonso; Barkley, Kante, Kovacic; Willian, Abraham, Pulisic.
Subs Caballero, James, Zouma, Jorginho, Gilmour, Mount, Loftus-Cheek, Hudson-Odoi, Giroud.
West Ham Fabianski; Fredericks, Ogbonna, Diop, Cresswell; Soucek, Rice (c); Bowen, Fornals, Lanzini; Antonio.
Subs Randolph, Anderson, Balbuena, Lewis, Wilshere, Johnson, Yarmolenko, Ajeti, Silva.
Referee Martin Atkinson
West Ham are seeking a first league double against the Blues since 2002/03.
West Ham have won three of their last seven Premier League home games against the Blues. Chelsea have also won three of those matches.
West Ham haven’t scored more than a single goal in any of their past seven Premier League games against Chelsea, failing to score on two occasions.
Chelsea have failed to score in our past two Premier League away games against West Ham. We’ve never gone three consecutive league games without an away goal against the Hammers.
Frank Lampard’s side have lost just one of our last 11 domestic league and cup games, winning the last five.
Chelsea are aiming for a sixth consecutive win for the first time since October 2019, when we managed seven in a row.
The Blues are seeking a fourth consecutive away Premier League London derby win for the first time since 2009.
The Blues have kept just one clean sheet in our 15 away Premier League encounters this campaign, a 2-0 victory against Tottenham in December.
Chelsea have scored twice or more in each of our last five Premier League games.