Chelsea can extend their perfect start with victory at Stamford Bridge, while Cardiff City are looking for their first win of the season.
Chelsea midfielder Ruben Loftus-Cheek (tibia) is doubtful after picking up an injury on international duty.
Emerson and Davide Zappacosta have sore throats while Cesc Fabregas (knee) is back in training and could make the bench.
Josh Murphy (hamstring) and Aron Gunnarsson (knee) are back in training but may not be risked this weekend.
Nathaniel Mendez-Laing (knee) is a long-term absentee.
Chelsea have a great record against Cardiff City, winning 10 of their last 12 league meetings and losing only one. They won both previous Premier League meetings in 2013/14.
The Blues have lost only one of their last 51 home Premier League matches against promoted teams (W42 D8 L1). The sole defeat came against AFC Bournemouth in December 2015.
Chelsea have attempted 2,996 passes this season, completing 2,677, more than any other team in the Premier League.
Pedro could make his 100th Premier League appearance in this match and is in a rich vein of form. Chelsea's Spaniard has scored three goals his last four league matches, matching his goal tally from his previous 26 fixtures.
Referee: Jonathan Moss
Assistants: Harry Lennard, Andy Halliday
Fourth official: Tim Robinson