Atletico Madrid sent 10-man Barcelona crashing out of the Champions League and reached the final four with a 3-2 aggregate victory despite Tuesday's 2-1 quarter-final second leg defeat.
Lamine Yamal and Ferran Torres fired visitors Barca ahead inside 24 minutes but Ademola Lookman's strike gave Atletico the edge in the gripping all-Spanish tie once again after their 2-0 win in the first leg.
Diego Simeone's side returned to the semi-finals for the first time since 2017 by holding on against the La Liga champions in a compelling and bloody battle.
Barcelona ended the game with 10-men as Eric Garcia was sent off for bringing down Alexander Sorloth as he ran in on goal, hampering their chance of finding a third goal to force extra-time.
Atletico, who have never won the competition and lost the 2014 and 2016 finals with Simeone at the helm, will face Arsenal or Sporting Lisbon in the semi-finals.
