Format
The remaining stages of the tournament constitute a single-elimination tournament. In each stage, the teams will play an opponent in a two-legged tie on a home-away basis. Each team will earn three (3) points for a win, one (1) point for a draw, and zero (0) points for a loss. The team with the most points at the end of each tie will advance.
Read more about this topic: 2008 Copa Libertadores Knockout Stages