In what seemed to be a done deal and an open way to the finals for Barcelona, after they beat Liverpool 3-0 on 1 May, Jurgen Klopp saw his team turn the tables. Goals by Divock Origi and Georginio Wijnaldum sealed Barcelona's fate, kicking Leo Messi's team out of the championship.
Liverpool's victory was celebrated by fans around the world and the unexpected turn of the game prompted an endless string of memes on social media.
Liverpool will meet either Ajax or Premier League rivals Tottenham on the field in the final on 1 June.