Format
Twenty teams played in the tournament. The teams were divided in five groups of four teams each and the matches were played in two legs. The group winners and the best three runners-up qualified for the quarterfinals. The quarterfinals, the semifinals were played in two legs. In 1998 and 2000 the finals were played in three legs. In 1999 and 2001 the finals were played in two legs.
Read more about this topic: Copa Mercosur