Brentford make two changes from the XI that began the 2-0 home win against Brighton on Friday as Mathias Jorgensen and Mads Roerslev start with Kristoffer Ajer and Yoane Wissa dropping to the bench.
Brentford XI: Raya, Henry, Pinnock, Mee, Jorgensen, Jensen, Janelt, Onyeka, Roerslev, Toney, Mbuemo.
Subs: Cox, Ajer, Wissa, Dasilva, Baptiste, Canos, Ghoddos, Lewis-Potter, Damsgaard.
Some big calls from Chelsea boss Graham Potter as he makes five changes from the side that began the 2-0 win at Aston Villa at the weekend.
Out go Thiago Silva, Ben Chilwell, Mateo Kovacic, Raheem Sterling and Pierre-Emerick Aubameyang and in come Kalidou Koulibaly, Cesar Azpilicueta, Jorginho, Conor Gallagher and Armando Broja.
Chelsea XI: Arrizabalaga, Cucurella, Koulibaly, Chalobah, Azpilicueta, Jorginho, Loftus-Cheek, Gallagher, Havertz, Mount, Broja.
Subs: Mendy, Silva, Kovacic, Zakaria, Ziyech, Sterling, Chukwuemeka, Pulisic, Aubameyang.