Both competitions have seen structure alterations, with expansions in the amount of participating groups, introduction of latest rounds, and adjustments in qualification conditions over time. The team phase was performed from September to December, while the knockout stage began in February, with matches normally performed on Tuesday and Wednesday evenings. https://konhci590998.eedblog.com/36588358/what-are-the-uefa-champions-league-and-uefa-europa-league-an-overview