The Primeira Liga strugglers were forced to name a team of just nine players, including two goalkeepers, after their clash with Belenenses was abandoned.
Belenenses returned with just seven players after the visitors scored seven goals.
The referee abandoned the game a minute into the second half after Joao Monteiro dropped to the floor as the minimum number of players on the field were not present.
A number of cases were reported to have been recorded after a positive test in the squad.
Belenenses had just nine players against Benfica.
Despite the squad being decimated, the match went ahead with just nine players selected.
The Belenenses players released a joint statement ahead of the match. If it is really sporting, football has heart.
Football has heart when it is an example of public health. Football lost its heart today.
"What is this?" was the question that Portugal's Bernardo Silva asked on and off. I don't understand why the game hasn't been postponed.
The headlines were made by Belenenses, who eventually forced the spectacle to be abandoned.
