[1] The competition's semi-finals (Benfica v Porto, and Braga v Sporting CP) were marked by controversy involving the video assistant referee (VAR).
[2][3][4][5] In the final, Sporting defeated Porto 3–1 in a penalty shoot-out after a 1–1 draw, becoming the second team (after Benfica) to both defend their title and win the competition multiple times.
Thirty-two teams competing in the two professional tiers of Portuguese football for the 2018–19 season are eligible to participate in this competition.
Games tied at the end of regular time were decided by a penalty shootout with no extra-time being played.
Twenty two teams were paired against each other for eleven single-legged ties, while Vitória de Setúbal was given a bye to the next round.
[6] Notes: The knockout phase was contested as a final-four tournament by the four third-round group winners in one-legged semi-finals and final.
As in the first and second round, games tied at the end of regular time were decided by a penalty shootout with no extra-time being played.