The two competitions have observed structure alterations, with expansions in the number of collaborating groups, introduction of new rounds, and adjustments in qualification conditions over the years. The team phase was played from September to December, while the knockout stage began in February, with matches typically played on Tuesday and https://caideneeten.blogproducer.com/43642414/detailed-notes-on-what-are-the-uefa-champions-league-and-uefa-europa-league