Porto welcome Atletico Madrid at the Estádio do Dragão in a Group B match of the Uefa Champions League in Portugal on Tuesday evening.
Porto can proceed in the competition provided they beat the Spanish champions and AC Milan win at home against Liverpool in another match for the group.
Atletico Madrid too have to win if they are to qualify for the last 16.
Liverpool have 15 points from five games and are guaranteed to win the group ahead of Porto on five points and AC Milan and Atlético on 4.
Porto: Marchesin; Manafa, Mbemba, Pepe, Sanusi; Otavio, Grujic, Oliveira, Diaz; Taremi, Evanilson
Atletico Madrid: Jan Oblak; Renan Lodi, Mario Hermoso, Felipe, Marcos Llorente; Yannick Carrasco, Koke, Rodrigo De Paul, Angel Correa; Antoine Griezmann, Luis Suarez