Thiago Silva makes his Premier League debut and is captain of the side.
The Brazilian comes into the defence in place of Kurt Zouma as one of three changes from the last Premier League outing against Liverpool.
There is a place for Tammy Abraham in attack after his productive showing in the cup match against Barnsley in midweek. He starts along with Timo Werner and Kai Havertz.
Willy Caballero is in goal.
Branislav Ivanovic, recently signed for West Brom, is not involved today against the side he represented so magnificently.
Chelsea: Caballero; James, Christensen, Silva (c), Alonso; Kante, Kovacic; Mount, Havertz, Werner; Abraham.
Subs: Kepa, Tomori, Azpilicueta, Jorginho, Barkley, Hudson-Odoi, Giroud.
West Brom: Johnstone; Ajayi, Bartley, O’Shea; Furlong, Livermore (c), Sawyers, Diangana, Townsend; Pereira, Robinson.
Subs: Button, Kipre, Phillips, Harper, Edwards, Field, Robson-Kanu.
The referee is Jon Moss
Chelsea are unbeaten against West Brom in our last six Premier League meetings, winning the last four.
The Blues have won on our past three visits to the Hawthorns.
The Baggies last beat Chelsea in May 2015 when Tony Pulis was their manager, when we had already won the league.
West Bromwich Albion have lost 18 Premier League games against Chelsea, more than they have against any other club.
Chelsea will be aiming to keep five consecutive clean sheets against West Brom for the first time in our history.
Chelsea have not lost an away game in September since 2016. The Blues are unbeaten away in September for seven games in all competitions, winning six of them, since we lost 0-3 to Arsenal in 2016.
Chelsea have scored 42 away goals in the Premier League since the start of last season. Only Man City (48) have netted more in the same period.
Lampard’s side have kept one clean sheet on the road since the beginning of last season in the Premier League (20 games), conceding an average two goals per game.
Chelsea have won four and lost three of our past seven away Premier League games at newly promoted sides.