Unbelievable! Barcelona seal the greatest comeback in Champions League history as Roberto scores their sixth deep in stoppage time(photos)

Barcelona's players celebrate at the full-time whistle after pulling off an incredible comeback against PSG

It was definitely the greatest ever comeback – it might even have been the greatest ever game.
Barcelona were given mission impossible and they delivered with 30 seconds to spare – just enough time to get their entire bench of celebrating substitutes and coaching staff off the pitch – and for a

hearbroken Paris Saint-Germain to take the restart.

'This is a crazy sport,' said Barcelona coach Luis Enrique. 'There is nothing else like it. In the 41st minute we were out but people kept believing and with the two substitutes we got the goal.

Sergi Roberto poked home from close range to complete the comeback and put Barcelona into the quarter-finals

The youngster runs off in celebration as Barca came back from a 4-0 first-leg defeat to progress 6-5 on aggregate

Sergi Roberto is chased by team-mates Andre Gomes and Gerard Pique as they rejoice in a miracle win at the Nou Camp

Sergi Roberto is surrounded by his jubilant team-mates after his 95th minute goal sent Barcelona through

Lionel Messi celebrates with the home fans after Barca pulled off an incredible comeback against PSG

Luis Enrique and his coaching staff join in the celebrations on the pitch after the full time whistle had blown

Neymar leaps into his manager Luis Enrique's arms after Barca reached the quarter-finals in dramatic style