1980–81 S.L. Benfica season with four more wins, including a home win against Porto, which widened their difference to four points. Meanwhile, in Europe, Benfica defeated Fortuna Düsseldorf in quarter-finals but was knocked-out by Carl Zeiss Jena in the semis. The final two months of the Primeira Divisão saw Benfica drop points with Académico de Viseu, Vitória de Guimarães and Sporting, reducing their lead to two points. On match-day 29, a home win against Setúbal secured their 24th league title. They concluded the season by winning their 17th Taça de Portugal in a 3–1 win against Porto. In the previous season, Mário Wilson failed
1979–80 S.L. Benfica season 13 April, Benfica visited Estádio de Alvalade to play Sporting, losing 3–1, with the gap to the leader Porto now at six points. Wilson complained of a "skilful" referee. Out of race, Benfica closed April with a draw against Boavista, increasing to seven the difference to the leader. May started with an away win against Varzim, for the semi-finals of the Portuguese Cup. They would meet Porto in the final for the fifth time in history. On 1 June, Benfica ended the Primeira Divisão campaign with 45 points, in third place. Not since 1954 had Benfica gone so long without