FA Cup: Chelsea v Brentford preview
Chelsea will look to keep their challenge for a domestic double on course when they host Brentford in Saturday's FA Cup fourth round.
Antonio Conte's men are eight points clear of Arsenal in the Premier League and brushed aside Peterborough comfortably in the previous round of this competition.
Fellow west Londoners Brentford, who are 15th in the Sky Bet Championship, will need to raise their game to topple their rivals, who have won their last nine matches at Stamford Bridge.
Conte is likely to rotate his squad ahead of two important Premier League games against Liverpool and Arsenal.
Cesc Fabregas, Kurt Zouma, Willian, Michy Batshuayi and Nathaniel Chalobah are all expected to feature.
Defender Gary Cahill could miss his first game of the season as Conte considers resting the centre-back.
Brentford boss Dean Smith has said 14-goal striker Scott Hogan is available for selection despite strong transfer interest from West Ham but has missed the last two games.