The teams that end up fourth in the 2018/19 UEFA Nations League A are relegated to the 2020/21 UEFA Nations League B .
The winners of each group will advance to the UEFA Nations League Finals , and the fourth placed team of each group will be relegated to the 2020–21 UEFA Nations League B.The Nations League Finals will take place in June 2019 and be played in a knockout format , consisting of the semi-finals , third place play-off , and final .
2018–19 UEFA Nations League A