Kurt Zouma starts for Chelsea in their crunch Champions League clash with Atletico Madrid at Stamford Bridge.
Andreas Christensen is missing from the Chelsea squad for the second leg of the last-16 tie so Zouma comes in alongside Cesar Azpilicueta and Antonio Rudiger in the back three.
Christensen was taken ill overnight, though it is not Covid-related.
Olivier Giroud is on the bench and Kai Havertz will continue as a false nine.
Chelsea manager Thomas Tuchel makes five changes to the side that drew 0-0 against Leeds at the weekend.
There is no place in the starting line-up for Christian Pulisic or Callum Hudson-Odoi, who are both on the bench.
Reece James and Marcos Alonso start as the two full-backs.
Chelsea, who are defending a 1-0 lead from the first leg, are without suspended duo Mason Mount and Jorginho, as well as the injured Thiago Silva and Tammy Abraham.
Kieran Trippier starts for Atletico.
Chelsea XI: Mendy; Azpilicueta, Zouma, Rudiger; James, Kante, Kovacic, Alonso; Ziyech, Havertz; Werner.
Subs: Kepa, Caballero, Emerson, Anjorin, Chilwell, Hudson-Odoi, Gilmour, Pulisic, Giroud.
Atletico XI: Oblak; Trippier, Savic, Gimenez, Lodl; Llorente, Koke, Saul, Carrasco; Luis Suarez, Joao Felix
Subs: Grbic, San Roman, Kondogbia, Torreira, Correa, Lemar, Herrera, Felipe, Dembele, Vitolo, Hermoso, Vrsaljko.
