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
1973–74 S.L. Benfica season on 11 February. Taking advantage of Porto's draw and Sporting's loss, Benfica won their match and cut Sporting's lead to just one point. In early March, Benfica surpassed Porto after their rival dropped points in Guimarães. On 10 March, Benfica visited Estádio das Antas to play Porto, losing 2–1. With this defeat, Benfica was now with 35 points, three less than Sporting. Following a home win against Guimarães, on next match on the road, Benfica drew with Beira-Mar by 1–1. The draw allowed Sporting to open a four-point gap with five matches to go, practically ending any hope of Benfica