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
2005–06 S.L. Benfica season losing the game. Benfica ended the season in third place, missing out on the title and an automatic place in the 2006–07 UEFA Champions League. Despite winning both games against Porto, the closest Benfica had come from them was on the 18 and 19 match-days, with only three points. Benfica closed the season 12 points behind the leader and five from Sporting. Of the Big Three, Benfica conceded the most goals (29) and scored the second-highest number of goals (51), with the worst goal-average (+22). Koeman wanted to fulfil his contract with Benfica, but after negotiations with the management and