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
1984–85 S.L. Benfica season won all league matches in April. In the Supertaça Cândido de Oliveira, a one-nil win for both Benfica and Porto forced a replay of the competition. In early May, John Mortimore was confirmed as new manager, with Csernai still in charge for another month. Before the end of May, Benfica lost away in the first leg of the Supertaça to Porto, but won the Derby de Lisboa with Sporting by 3–1, reducing the distance between them. In June, Benfica lost again in the Supertaça, losing the competition and finished the league in third place, 12 points behind Porto and five