The 2019–20 UEFA Europa League knockout phase began on 20 February with the round of 32 and ended on 21 August 2020 with the final at RheinEnergieStadion in Cologne, Germany, to decide the champions of the 2019–20 UEFA Europa League.
If no goals were scored during extra time, the winners were decided by a penalty shoot-out.
[2] The mechanism of the draws for each round was as follows: On 17 June 2020, UEFA announced that due to the COVID-19 pandemic in Europe, the final stages of the competition would feature a format change.
The quarter-finals, semi-finals, and final would be played in a single-leg format from 10 to 21 August 2020 in the German cities of Cologne, Düsseldorf, Duisburg and Gelsenkirchen.
The matches were tentatively played behind closed doors, though spectators could be allowed subject to a review of the situation and the decisions of the national and local government.
This followed a proposal from FIFA and approval by IFAB to lessen the impact of fixture congestion.
[4] In the knockout phase, teams from the same or nearby cities (Porto and Braga) were not scheduled to play at home on the same day, due to logistics and crowd control.
For the round of 16, quarter-finals, and semi-finals, if the two teams were drawn to play at home for the same leg, the order of legs of the tie involving the team with the lowest priority was reversed from the original draw.
[1] Following the round of 16 first legs, the competition was postponed indefinitely due to the COVID-19 pandemic in Europe.
[8] A working group was set up by UEFA to decide the calendar of the remainder of the season.
[9] Matches could also be played on Tuesdays or Wednesdays instead of the regular Thursdays due to scheduling conflicts.
In July 2020, they confirmed that the second legs would be played at the home team's stadium as normal.