Chelsea still sit 16 points behind runaway leaders Manchester City despite a good run of form, which they look to continue against a side they have beaten in their last three Premier League meetings.
It's not looking promising for the Foxes, who have lost three of their last five matches and drew 0-0 with Fleetwood in the FA Cup third, while also losing the corresponding fixture against Chelsea earlier this season with goals from Alvaro Morata and N'Golo Kante.
Chelsea are expected to field a full-strength side against Leicester. Captain Gary Cahill was rested for the midweek Carabao Cup semi-final first-leg with Arsenal and could return in defence, while Ross Barkley is not expected to be fit to make his debut until next Wednesday.
Jamie Vardy is fit again after missing Leicester's FA Cup trip to his former club Fleetwood. The striker will travel to Chelsea on Saturday after recovering from the groin injury which made him sit out the goalless draw at Highbury Stadium last Saturday.
Wes Morgan and Danny Simpson (both hamstring) and Robert Huth (ankle) are out but Christian Fuchs (illness) and Vicente Iborra (hamstring) are fit for Claude Puel's side at Stamford Bridge.
Potential lineups:
Chelsea: Courtois, Azpilicueta, Christensen, Cahill, Moses, Kante, Fabregas, Alonso, Hazard, Pedro, Morata
Leicester: Schmeichel, Amartey, Dragovic, Maguire, Fuchs, Mahrez, Ndidi, James, Albrighton, Okazaki, Vardy