The UEFA Champions League employed to begin with a double round-robin team phase of 32 groups until it evolved right into a league section of 36 groups, which happens to be preceded by two qualification 'streams' for groups that don't get direct entry for the tournament proper. A map of https://keonhacaitv82613.tinyblogging.com/the-fact-about-what-are-the-uefa-champions-league-and-uefa-europa-league-that-no-one-is-suggesting-80077012