2001–02 UEFA Champions League second group stage
Eight winners and eight runners-up from the first group stage were drawn into four groups of four teams, each containing two group winners and two runners-up. Teams from the same country or from the same first round group could not be drawn together. The top two teams in each group advanced to the quarter-finals.
Based on Article 7.06 in the UEFA regulations, if two or more teams are equal on points on completion of the group matches, the following criteria will be applied to determine the rankings:
...
Wikipedia