The two competitions have noticed structure modifications, with expansions in the amount of collaborating groups, introduction of recent rounds, and adjustments in qualification requirements through the years. The team phase was played from September to December, while the knockout phase began in February, with matches commonly performed on Tuesday and https://k-o-nh-c-i38268.blogdiloz.com/35299697/about-what-are-the-uefa-champions-league-and-uefa-europa-league