With UEFA's commitment to meet the 2019-20 campaign's sporting criteria, if the domestic leagues are not resolved by the COVID-19 pandemic, the 2020-21 Champions League would present a poster with notable absences, interesting new developments and returns after campaigns without playing the group stage of the major continental competition.
Teams such as Atletico Madrid, who still have the chance to win this year's competition after reaching the quarter-finals by eliminating champions Liverpool, Tottenham, who have already been eliminated but are still runners-up, and others such as Arsenal, Roma, Napoli, Lyon and PSV Eindhoven, for example, would be left out.
The Neapolitan side and Lyon, however, have yet to make the second leg of the Round of 16, although they must overcome Barcelona, with whom the Italian team drew 1-1 at San Paolo, and Juventus, whom the French side beat 1-0 at home.
The Spanish Football Federation (RFEF) was the first to announce, under these sporting criteria, what its decision would be in the event that La Liga could not be resumed, which generated disgust and great criticism from those affected.
Diego Pablo Simeone's team has shown itself to be one of the most competitive in recent seasons, reaching the finals in 2014 and 2016, both of which were lost to arch-rivals Real Madrid.
The irregularity of the league, if they don't win the title, can leave him with the problem of not winning the Champions League for the first time in years and having to play in the Europa League, which he would enter together with Getafe and probably Athletic through the Copa del Rey.
Sevilla FC would return two years later to the first continental competition to try to have a leading role that resists it, and the most significant thing would be the return of Real Sociedad six years later.
Valencia, who lost in the round of 16 of the current edition against Atalanta, would be out of Europe, as well as another usual as Villarreal. Both are at the gates and would be a sporting and economic power.
Jose Mourinho's Tottenham would go from playing the final of Wanda Metropolitano to falling in this edition against the surprising RB Leipzig and not even enter Europe, as it is eighth in the Premier, in which Arsenal, another classic, is ninth. Along with Liverpool, would enter Manchester City, Leicester and Chelsea, and another historic and Champions League champions, Manchester United, would have to be content with the Europa League to be fifth. That is, if City are allowed to play in Europe.