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
1979–80 S.L. Benfica season with Vitória de Setúbal on 20 January, losing a point in the race. Two weeks later, in the visit to Estádio das Antas to face Porto, Benfica lost 2–1 and opened a four-point deficit, which Wilson admitted: "is a disadvantage difficult to overcome". But February had also scheduled a Portuguese Cup match against Sporting for the round of 16, which Benfica won by 2–1. Back on the league, despite dropping points with Vitória de Guimarães in early March, Benfica kept the chase to the front two, but could not cut the distance to them, which remained at four points. On