Rui Vitória has made five changes to his squad for the trip to CD Aves. Douglas has been ruled out with a sprained right ankle, and is replaced by André Almeida, whose two-match ban only applies to continental competition.
João Carvalho has been dropped in favour of Filip Krovinović, who was not registered for the Champions League group stage. Andreas Samaris is still serving a domestic suspension. Rafa Silva and Jardel are both fit, but have not been selected.
Sunday's match at the Estádio do Clube Desportivo das Aves gets underway at 18:00 local time.
Goalkeepers: Svilar and Júlio César
Defenders: Lisandro, Grimaldo, Luisão, Eliseu, Rúben Dias and André Almeida
Midfielders: Fejsa, Filipe Augusto, Pizzi, Krovinović, Salvio, Živković, Cervi and Diogo Gonçalves
Forwards: Raúl, Jonas, Gabriel Barbosa and Seferović