Both competitions have viewed format changes, with expansions in the volume of taking part teams, introduction of recent rounds, and adjustments in qualification standards through the years. The group stage was played from September to December, while the knockout stage commenced in February, with matches commonly performed on Tuesday and https://t-l-k-o-nh-c-i-518134.yomoblog.com/43130647/what-are-the-uefa-champions-league-and-uefa-europa-league-secrets