Pep Chavarria, Valentin Barco, Jordan Henderson and Danny Welbeck are included in Alonso’s starting XI. Reece James and Joao Pedro are unavailable, while Malo Gusto, Jorrel Hato and Romeo Lavia drop to the bench.

The other new face in the side from last weekend’s draw with Hull City is Maxence Lacroix, while Henderson's selection means he makes his Blues debut against the club he represented last season.

The bench includes 16-year-old Mahdi Nicoll-Jazuli for the first time in a competitive game.

Chelsea: Martinez, Fofana, Lacroix, Colwill (c), Neto, Henderson, Barco, Chavarria, Palmer, Rogers, Welbeck

Substitutes: Penders, Acheampong, Gusto, Hato, Lavia, Nicoll-Jazuli, Gittens, Estevao, Quenda

Brentford: Kelleher; Kayode, Ajer, Schuster, Lewis-Potter; Janelt, Yarmoliuk, Damsgaard; Anthony, Thiago, Schade

Substitutes: Balcombe, Hickey, Henry, Ouattara, Wilson, Carvalho, Sangare, Diouf, Fredrick

The referee is Andrew Madley.