2017–18 UEFA Europa League
As winners, Atlético Madrid played against the winners of the 2017–18 UEFA Champions League, Real Madrid, in the 2018 UEFA Super Cup. They also automatically qualified for the 2018–19 UEFA Champions League group stage, but since they had already qualified through their league performance, the berth reserved was given to the third-placed team of the 2017–18 Ligue 1.