1999–2000 S.L. Benfica season "their worst performance of the season, and seeing Porto close in on the top of the table." On 4 November, Benfica hosted P.A.O.K. for the second leg of their European qualifier. They lost 2–1 in normal time, requiring extra time and a penalty shootout to decide the match. The Lisbon side converted all their shots, progressing into the next round. Four days later, the club defeated S.C. Braga by one goal in a league match to open a three-point lead. After a one-week break for the Taça de Portugal, Benfica visited Estádio das Antas for the Clássico against Porto. They
FC Porto for the first time. The 2006–07 Primeira Liga title was only secured in a frantic final day, as Porto finished one point above Sporting and two above Benfica. In the following season, the club achieved the "Tri" for the second time in its history – with López clinching the top goalscorer award –, but lost the Taça and Supertaça finals to Sporting CP. As result of a legal investigation on match fixing in Portuguese football, Porto was punished with the loss of six points, which did not affect its final league classification. Having claimed a sixth league and cup double