The UEFA Champions League made use of to start with a double spherical-robin team phase of 32 groups right until it progressed 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 towards the tournament proper. https://rylanyunmg.dgbloggers.com/36968842/a-review-of-what-are-the-uefa-champions-league-and-uefa-europa-league