Maurizio Sarri names the same line-up as started the win against Manchester City last weekend.
That means Eden Hazard will again play as the central striker with Willian and Pedro in support.
In the defence, Marcos Alonso makes his 100th Chelsea appearance.
For Brighton, their leading scorer Glenn Murray comes back into the side in one of three changes.
Chelsea: Kepa; Azpilicueta (c), Rudiger, David Luiz, Alonso; Kante, Jorginho, Kovacic; Pedro, Hazard, Willian.
Subs: Caballero, Emerson, Christensen, Fabregas, Barkley, Loftus-Cheek, Giroud.
Brighton: Ryan, Montoya, Balogun, Dunk (c), Bernardo, Knockaert, Propper, Stephens, March, Gross, Murray.
Subs: Steele, Bruno, Bong, Bissouma, Kayal, Andone, Locadia.
Today's referee is Stuart Atwell