Completesportsnigeria.com's JAMES AGBEREBI relives SIX memorable UEFA Champions League comebacks at Camp Nou following Barcelona's stunning 6-1 win over PSG on Wednesday…
BARCELONA 6-1 PARIS SAINT-GERMAIN (2016/2017 UCL Round 16)
Barcelona looked dead and buried prior to the second leg of their round 16 UEFA Champions League tie against Paris Saint-Germain.
The Spanish champions lost the first leg 4-0 in Paris and needed to do the unthinkable in the second leg at the Camp Nou to avoid crashing out of the round of 16 for the first time since the 2006/2007 season.
And that was exactly what they did as they emerged 6-1 winners to go through 6-5 on aggregate.
Luis Suarez opened the scoring for Barcelona in the third minute before Layvin Kurzawa helped Barcelona double their lead on 40 minutes with an own goal.
Lionel Messi made it 3-0 from the penalty spot in the 50th minute but Edinson Cavani looked to have ended Barcelona's hopes with a 62nd minute goal.
But with just three minutes remaining and needing to score three goals to advance, Neymar netted a superb 88th minute free-kick and a 90th minute penalty to make it 5-1.
And in the 95th minute, Sergi Roberto completed the comeback by getting on to Neymar's through ball to send Barcelona into the last eight.
BARCELONA 5-1 CHELSEA (1999/2000 UCL Quarter-final)
Chelsea beat Barcelona 3-1 in the first leg of their 1999/2000 quarter-final clash.
A brace from Tore Andre Flo and Gianfranco Zola's goal looked to have been enough to send Chelsea into the semi-final. Luiz Figo scored Barcelona's goal in the first leg.
In the return leg at the Camp Nou, Rivaldo got the first goal on 24 minutes before Figo made it 2-0 on the stroke of half-time.
Andre Flo put Chelsea back in the driving sit when he got on the score sheet in the 60th minute.
With seven minutes left, Daniel Garcia headed in Figo's cross to bring the tie to 3-3 on aggregate and into extra-time.
Rivaldo made it 4-1 from the penalty spot in the ninth minute of extra-time after former Nigerian international Celestine Babayaro fouled inside the box.
Patrick Kluivert put the game beyond Chelsea by making it 5-1 in the 104th with Barcelona progressing 6-4 on aggregate.
MAN UNITED 2-1 BAYERN MUNICH (1998/1999 UCL FINAL)
This could be described as one of the greatest comebacks in the final of the UEFA Champions League as Manchester United snatched victory from the jaws of defeat against a very good Bayern Munich side.
Mario Basler opened the scoring for Bayern Munich in the sixth minute with a brilliant free-kick from the edge of the 18 which went round United's defensive wall.
With time ticking away, United went all guns blazing and were rewarded for their persistent pressure through substitute Teddy Sheringham in the 91st minute.
Still recovering from the shock, United finally provided the knockout blow in the 93rd minute through Ole Gunnar Solksjaer who also came on as a second half substitute.
BARCELONA 4-0 AC MILAN (2012/2013 UCL Round 16)
AC Milan thought they had done enough following their 2-0 first leg win against Barcelona at the San Siro in the round of 16 of the 2012/2013 UEFA Champions League.
But the Italian giants never envisaged what was in store for them in the return leg at the Camp Nou as Barcelona came from the two-goal deficit to win 4-0.
Lionel Messi wiped out Milan's two goal advantage after scoring in the fifth and 40th minutes.
David Villa made it 3-0 before Jordi Alba completed the comeback with a 92nd minute goal to send Barcelona into the quarter-finals 4-2 on aggregate.
BARCELONA 3-1 PANATHINAIKOS (2001/2002 UCL Quarter-Final)
Panathinaikos pipped Barcelona 1-0 in Greece in the first leg of their 2001/2002 UEFA Champions League clash.
In the second leg at the Camp Nou, Panathinaikos stunned Barcelona by going 1-0 up in the eight minute through Michalis Konstantinou.
The goal by Panathinaikos meant Barcelona must score three goals to stand a chance of progressing into the semi-finals.
Despite the early setback, Barcelona ran out 3-1 winners to go through 3-2 on aggregate.
A Luis Enrique brace and a goal from Javier Saviola completed the comeback for Barcelona.
BARCELONA 2-2 CHELSEA (2011/2012 UCL Semi-Final)
Barcelona went into their second leg semi-final clash against Chelsea with the confidence of overturning the 1-0 first leg deficit at Stamford Bridge.
But it wasn't as Barcelona had anticipated as they met a resolute Chelsea team who held them at bay for most part of the first half.
However, Chelsea's resistance finally got broken in the 35th minute as Sergio Busquets opened the scoring for Barcelona.
Two minutes later John Terry was sent off for a challenge on Alexis Sanchez.
Barcelona went 2-0 up in the 43rd minute through Andres Iniesta but Ramires pulled a goal back to make it 2-1 before the break.
In the second half, Barcelona laid siege in Chelsea's half in search of the decisive third goal but could not break down Chelsea. Messi even missed a penalty in the 49th minute.
It was Chelsea that had the final laugh as Fernando Torres broke away and scored in the 92nd minute to send Chelsea into the final.