5 greatest comebacks in UEFA Champions League history

#3 Barcelona - 6 PSG - 1 (Aggregate: Barcelona - 6 PSG - 5), 2016-17 Round of 16

Following a humbling 0-4 first leg reverse in the French capital, few would have given Barcelona much chance of a comeback on home turf against Paris St. Germain. No side in the competition had ever turned a four-goal first-leg deficit.

Barcelona led through most of the first half courtesy Luiz Suarez's fourth minute opener. Layvin Kurzawa put through his own net five minutes from the break as the home side reduced the arrears in half. A Lionel Messi penalty early into the second half put the cat among the pigeons as Barcelona moved to within a goal of a stunning turnaround.

Edinson Cavani calmed the frayed nerves of the visitors by netting what seemed to be a priceless away goal at the hour mark. The home side now needed another three goals to avoid elimination.

PSG held on till the 88th minute when Neymar scored Barcelona's 4th of the game, and the home side entered injury time needing two goals to complete the comeback. Neymar scored a penalty and in a stunning finish to the game, Sergi Roberto netted with virtually the last kick of the game as PSG were left shell-shocked.

It marked the first time any side had successfully recovered from a four-goal deficit in the Champions League and only the fourth time ever in any European club competition barring qualifiers.