Changes were made to the default access list since the Champions League title holders, Bayern Munich, and the Europa League title holders, Sevilla, which were guaranteed berths in the Champions League group stage, already qualified for the Champions League group stage via their domestic leagues. However, as a result of schedule delays to both the 2019–20 and 2020–21 European seasons due to the COVID-19 pandemic, the 2020–21 European season started before the conclusion of the 2019–20 European season. Therefore, the changes to the access list that should be made based on the Champions League and Europa League title holders could not be certain until matches of the earlier qualifying rounds had been played and/or their draws had been made. UEFA used "adaptive re-balancing" to change the access list once the berths for the Champions League and Europa League title holders were determined, and rounds which had already been drawn or played by the time the title holders were determined would not be impacted (Regulations Article 3.04). The following changes were made: