ABSTRACT The play-offs of the UEFA Euro 2020 qualifying tournament determine the last four participants in the UEFA European Championship 2020. Sixteen teams, which have failed to obtain a slot in the qualifying group stage, will be selected and divided into four paths of four teams each based on the inaugural season 2018–19 of the UEFA Nations League. We provide a critical examination of the relevant UEFA regulation and show that its articles contradict each other and allow for an unfair formation of the play-off paths: it might happen that all conditions cannot be satisfied simultaneously and a group winner might face stronger opponents than a non-group winner from the same league despite its better performance in the UEFA Nations League. Simple and straightforward solutions for both problems are suggested.

中文翻译：

---

两期UEFA 2020年欧洲杯预选赛附加赛

摘要欧足联2020年欧洲杯预选赛的附加赛决定了欧足联2020年欧洲锦标赛的最后四名参赛者。将选择十六支在预选赛小组赛中未能获得席位的球队，并将其分为四组，每组四条每支球队都基于UEFA国家联赛2018-19赛季首个赛季。我们对欧足联的相关规定进行了严格的审查，并显示其条款相互矛盾，并允许不公平地形成附加赛路线：可能无法同时满足所有条件，并且团体冠军可能会面临比对手强的对手来自同一个联盟的非团体冠军，尽管在欧洲联盟国家联盟中表现更好。建议针对这两个问题的简单直接的解决方案。