Southampton remain without long-term absentee Valentino Livramento, who continues his recovery from knee surgery.
Centre-back Kalidou Koulibaly returns after completing a one-game ban.
N'Golo Kante is still out with a hamstring injury, while boss Thomas Tuchel says Mateo Kovacic is not yet fit enough to start.

MATCH FACTS
Head-to-head
- Chelsea have scored in each of their last 17 Premier League away games against Southampton - the longest scoring streak one team has had against another away from home in the history of the competition.
- Ralph Hasenhuttl's only win in seven meetings with Thomas Tuchel (D1, L5) was a 1-0 victory for RB Leipzig against Borussia Dortmund in the Bundesliga in September 2016.