Benfica hold the overall record of “Biggest two legged wins”. They beat Stade Dudelange of Luxembourg 18-0 in the preliminary round in 1965-66. Pedras scored a hat-trick in first leg in which Benfica scored 8 unanswered goals. The next leg in Lisbon turned out to be more emphatic. Eusebio scored 4 and Jose Augusto scored a hat-trick. Benfica ran riot and won 10-0.
