Rui Vitória has named 21 players in his preliminary squad for Monday's League cup semi-final with Braga. Jardel is absent with a sprained left ankle, while Nico Gaitán has taken a knock to his left foot. It is unclear whether either will be fit for Sunday's trip to Marítimo. André Almeida is suspended.
Adel Taarabt and Lisandro López return to the squad, with the Moroccan still awaiting his first-team debut, and the Argentinean hoping to make his first appearance since January. Skipper Luisão may start, having been sidelined since breaking his arm in November.
The game begins at 19:45 local time, with the winners set to face Marítimo in the final later this month.
Goalkeepers: Ederson and Paulo Lopes
Defenders: Nélson Semedo, Sílvio, Lindelöf, Luisão, Lisandro, Eliseu and Grimaldo
Midfielders: Samaris, Fejsa, Renato Sanches, Salvio, Carcela, Pizzi, Gonçalo Guedes, Talisca and Taarabt
Forwards: Jonas, Raúl and Mitroglou