the identity of the winners of the previous round is not known at the time of the draws, the seeding is carried out under the assumption that the team with the higher coefficient of an undecided tie advances to this round, which means if the team with the lower coefficient is to advance, it simply takes the seeding of its opponent. Teams from associations with political conflicts as decided by UEFA may not be drawn into the same tie. Prior to the draws, UEFA may form "groups" in accordance with the principles set by the Club Competitions Committee and based on geographical, logistical and political reasons, and they are purely for convenience of the draw and do not resemble any real groupings in the sense of the competition. Due to the COVID-19 pandemic in Europe, all qualifying matches are played behind closed doors. The following special rules are applicable to the qualifying phase and play-offs: Prior to each draw, UEFA publish the list of known travel restrictions related to the COVID-19 pandemic. All teams must inform UEFA if there are other existing restrictions other than those published. If a team fails to do so which as a consequence the match cannot take place, the team is considered responsible and to have forfeited the match. If travel restrictions imposed by the home team's country prevent the away team from entering, the home team must propose an alternative venue that allows the match to take place without any restrictions. Otherwise they are considered to have forfeited the match. If travel restrictions imposed by the away team's country prevent the away team from leaving or returning, the home team must propose an alternative venue that allows the match to take place without any restrictions. Otherwise UEFA decide on a venue. If after the draw, new restrictions imposed by either the home team's or away team's country prevent the match from taking place, the team of that country are considered to have forfeited the match. If either team refuses to play the match, they are considered to have forfeited the match. If both teams refuse to play or are responsible for a match not taking place, both teams are disqualified. If a team has players and/or officials tested positive for SARS-2 coronavirus preventing them from playing the match before the deadline set by UEFA, they are considered to have forfeited the match. In all