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 August, but Benfica postponed it four days, so they could play a friendly abroad. On the 29, Benfica won 5–1 and Jorge Gomes made his historical debut. After the 0–0 draw in Clássico on match-day 3, Benfica shared first place with Porto with five points. However, in the UEFA Cup, the campaign was disappointing, with Benfica unexpectedly losing to Aris on the first round. On the league, Benfica dropped to second after a draw with União de Leiria, but managed to recover and catch Porto on match-day 8. A week later, they beat Sporting in the Derby de Lisboa, reaching