1983–84 S.L. Benfica season left the club in second, a point shy of the leader Porto, their next opponent. In the Clássico, Benfica beat his rival Porto and assumed first place. Later in the month, Benfica defeated Olympiacos in the second round of the European Cup, qualifying for the quarter-final. In November and December, Benfica won all their league matches, but lost the Supertaça Cândido de Oliveira to Porto. Benfica kept on winning in the Primeira Divisão in January, lapping the first part of league with a three-point lead. However they suffered a set-back in the Taça de Portugal, losing 2–1 in Estádio de
1981–82 S.L. Benfica season 4–1 loss, now for Supertaça Cândido de Oliveira with Porto and lost the trophy. On 17 January, Benfica lost in Bessa with Boavista, finishing the first half of the league with 21 points, four behind leaders Sporting. A week later, Benfica beat Porto at home by 3–1, only to close the month with an away draw with Portimonense. The gap was now at five points. In February, another loss, 1–0 with Vitória de Guimarães, with Sporting increasing their lead to seven points. In the opening match-day of March, Benfica drops more points in an away draw with Estoril Praia, but