Chelsea captain John Terry has recovered from an ankle injury and takes his place for the Blues' crucial Champions League qualifier with Porto.
Brazilian midfielder Ramires also returns to the side, while Diego Costa is selected up front.
Porto, who have never won in England, are without former Southampton striker Dani Osvaldo, who has a knee problem.
Algerian international Yacine Brahimi leads the line in Osvaldo's absence, and head coach Julen Lopetegui has no other injury concerns.
Chelsea: Courtois; Ivanovic, Zouma, Terry, Azpilicueta; Ramires, Matic; Willian, Oscar, Hazard; Costa
Subs: Begovic, Cahill, Mikel, Kenedy, Fabregas, Pedro, Remy
Porto: Casillas; Maxi, Maicon, Marcano, Indi; Danilo, Imbula, Herrera, Layun, Corona; Brahimi
Subs: Helton, Ruben Neves, Evandro, Varela, Tello, Aboubakar, Bueno
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Joe Sharratt
