FC Porto Nuno Valente and Derlei, Porto won the 2002–03 Primeira Liga with relative comfort, finishing 11 points ahead of second-placed Benfica. The club also won the UEFA Cup, defeating Celtic in a dramatic extra-time final, to win its second major European title. Mourinho then secured an unprecedented treble for Porto by winning the Taça de Portugal final against his previous club. The 2003–04 season began with another 1–0 win over União de Leiria, which gave the club its 13th Supertaça. Weeks later, Porto failed to repeat this result in the 2003 UEFA Super Cup, losing 1–0 to Milan. The departure of
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