2021–22 UEFA Champions League
Teams from the same association, and due to political reasons, teams from Ukraine and Russia, could not be drawn into the same group. Before the draw, UEFA formed pairings of teams from the same association (one pairing for associations with two or three teams, two pairings for associations with four or five teams) based on television audiences, where one team was drawn into Groups A–D and another team was drawn into Groups E–H, so that the two teams would play on different days.