2021–22 UEFA Champions League
This season was the first since 1999–2000 (the first season after the end of the UEFA Cup Winners' Cup) where three major European club competitions (UEFA Champions League, UEFA Europa League, and the newly created UEFA Europa Conference League) are organised by UEFA. No changes were made to the format of the Champions League, but teams that were eliminated from the preliminary round and first qualifying round of the Champions League were now transferred to the Europa Conference League instead of the Europa League.