1985–86 S.L. Benfica season lapped the first round of the league in first place, after recovering five points since September. After an event-less January, in which Benfica retained their one-point lead over Sporting; in February, Benfica faced Porto again, this time for the round of 16 of the Taça de Portugal, winning 2–1. Meanwhile, in the Primeira Divisão, they added another point in their lead over their closest competitors. In March, Benfica was eliminated of the Cup Winners' Cup by Dukla Prague, while in the Portuguese Cup, they thrashed Sporting by 5–0 in the quarter-finals. They finished the month with a replay of the
1985–86 S.L. Benfica season match with Salgueiros, which had been postponed in February because of the pitch conditions. They drew 1–1 and lost points in title race. In April, Benfica received Sporting in what was labelled the D-Day for the league. Despite leading the league for most of second round, they lost 2–1, which allowed Porto to catch them in the first place, with a better head-to-head record. Mortimore said: "Sporting had two chances and converted them both, we had lost the league". On the last day of the campaign, Porto beat last classified, Sporting da Covilhã and won the league, while Benfica lost