Both equally competitions have seen structure improvements, with expansions in the amount of taking part groups, introduction of recent rounds, and adjustments in qualification standards through the years. The group phase was performed from September to December, whilst the knockout stage started in February, with matches commonly performed on Tuesday https://emilianocxrle.bcbloggers.com/35544199/an-unbiased-view-of-what-are-the-uefa-champions-league-and-uefa-europa-league