The UEFA Champions League made use of to begin with a double spherical-robin group phase of 32 teams until finally it progressed into a league phase of 36 groups, which happens to be preceded by two qualification 'streams' for groups that do not receive direct entry on the Match suitable. https://edwinqvwwx.madmouseblog.com/17013358/detailed-notes-on-what-are-the-uefa-champions-league-and-uefa-europa-league