The greatest comebacks in Champions League history Barcelona vs. Chelsea, 2000 quarterfinals Barcelona trailed 3-1 after the 1st leg, but came back to win 6-4 on aggregate in extra time. Deportivo La Coruna vs. AC Milan, 2004 quarterfinals From 4-1 down, Deportivo won 5-4 on aggregate to eliminate the defending champs. Barcelona vs. AC Milan, 2013 round of 16 A 2-0 loss in the 1st leg didn't faze Barcelona, who won 4-0 at home. Bayern Munich vs. Porto, 2015 quarterfinals Bayern lost 3-1, but scored 5 (!) 1st half goals in the 2nd leg in a 6-1 home win. Barcelona vs. Paris Saint-Germain, 2017 round of 16 The 1st ever 4-goal comeback, thanks to 3 goals in the last 7 minutes.