1977–78 S.L. Benfica season by Porto. The decisive Clássico in May, Porto secured a 1–1 draw after trailing most of the game, putting them on the course to win the league. Two weeks later, an unbeaten Benfica came second to Porto due to a 15 goal-average deficit. Benfica started the new season as three time Champion for the second time in the decade. In the transfer window, Benfica brought back Humberto Coelho and others like Celso Pita. Departing players included Nelinho, Artur Correia and Carlos Alhinho. One of biggest sagas of the transfer window was the return of Rui Jordão to Portugal, which Benfica
1983–84 S.L. Benfica season Alvalade being eliminated by Sporting. In February, Benfica lost points again in the league after twelve consecutive wins. March was even more troublesome because the team was knocked-out of the European Cup by Liverpool, while in the league, Porto gave them their first league loss all season. Still, in the following month, Benfica won five games and draw one, allowing them to keep the three point lead over Porto. On 29 April, Benfica unexpectedly lost 4–1 with Vitória de Guimarães. The loss did not cause major damage because Porto had also lost points, so the distance was only cut to