Graham Potter appears to move to a back four as Chelsea makes three changes from the 2-2 draw with Everton before the break.
Wesley Fofana’s injury prevents him from playing, so Marc Cucurella is obliged to fill in at the back.
The other two changes see Ruben Loftus-Cheek coming in to replace Benoit Badiashile, while Mykhailo Mudryk replaces Christian Pulisic on the wing.
As expected, Mason Mount is on the bench after missing international duty with England, with N’Golo Kante also among the substitutes.
Chelsea: Kepa; James, Koulibaly, Cucurella, Chilwell; Enzo, Loftus-Cheek, Kovacic; Felix, Havertz, Mudryk
Substitutes: Bettinelli, Badiashile, Kante, Pulisic, Chalobah, Mount, Gallagher, Chukwuemeka, Madueke
Aston Villa: Martinez; A.Young, Konsa, Mings, Moreno; Kamara, Luiz, McGinn; Buendia, Watkins, Ramsey
Substitutes: Sinisalo, Wright, Carlos, Traore, Chambers, Duran, Digne, Bailey, Dendoncker