The quarter-final pairings are determined by means of a draw in accordance with Paragraph 13.08 and the following principles:
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Group winners must be drawn against runners-up from a different group.
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The runners-up play the first leg at home.
The four winners of the quarter-finals contest the semi-finals. The semi-final pairings are determined by means of a draw.
The quarter-finals and semi-finals are played under the knockout system, on a home-and-away basis (two legs).
The team that scores the greater aggregate of goals in the two matches qualifies for the next stage. Otherwise, Article 21 applies.