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
2005–06 S.L. Benfica season days later, Benfica returned to the winning path in the Primeira Liga after beating Penafiel 4–0. Geovanni opened the scoring in the first half, after which Nuno Gomes, Simão and an own goal from Roberto set the final result. On 18 February, Benfica played on the road against Vitória de Guimarães. They did not play as expected and conceded two goals—one in each half—losing 2–0. The loss severely hampered their title defence after being overtaken by Sporting and Braga and allowing leaders Porto—their next league opponent—to gain an eight-point advantage. Three days after Guimarães, Benfica hosted Liverpool for the first