JURGEN KLOPP praised the mental strength of his team and the support they received from the fans as Liverpool produced one of the all-time great football comebacks.

“I don’t think it’s possible, but because it’s you we have a chance,” Klopp told his players prior to the game as they looked to overturn a 3-0 deficit from the first leg against Barcelona.

From the moment Luis Suarez kicked off to get this game underway, jeered as he did so, it was evident Klopp was right.

Divock Origi’s goal after seven minutes enhanced a belief in the impossible, and Liverpool covered every blade of the Anfield turf to make life difficult for their illustrious opponents.

Andy Robertson clashed with Lionel Messi and Suarez, while midfield-mountain Fabinho further added to the discomfort of the visiting stars.

The players were joined on their quest by supporters all around the old stadium which has witnessed many a memorable European night, but none quite like this. 

It’s normal for those in the Kop to stand for an entire game, but they were joined by the other three stands in the second half as the supporters became part of this historical display of defiance.

“We know that this club is the mix of atmosphere, emotion, desire and football quality. You cut off one, it doesn’t work,” said Klopp. 

“For me this club, if I have to describe it, is a big heart and tonight it was pounding like crazy. You could probably hear it and feel it all over the world.

“It’s just unbelievable. I’m so happy we could give the people this experience.”

There was no welcome return for former Reds Suarez or Philippe Coutinho but one goal from either, or from the best player in the world, Messi, would have left Klopp’s side needing five.

Scoring four goals while also keeping a clean sheet against one of the best teams in the world — it was a mammoth task which led to an extraordinary effort and an unbelievable result.

And this was a Liverpool side missing two of its best players — Roberto Firmino and Mohamed Salah — as well as midfielder Naby Keita who would have been a starter if fit, but those who replaced them gave the performance of their lives.

Origi’s two goals, the opener and the winner, were key, but the impact of substitute Georginio Wijnaldum changed the game.

The Dutchman replaced the injured Robertson at half-time meaning Liverpool, with no left back on the bench, had to shuffle their pack further with the ever-reliable James Milner filling in.

Wijnaldum offered a goal threat from midfield which the hosts lacked in the first half. He made a late run into the box to power home Trent Alexander-Arnold’s cross from the right, and then headed Xherdan Shaqiri’s ball in from the left to make it three.

Origi was the only person in Anfield on the same wavelength as Alexander-Arnold as the young Scouser took a quick corner which Klopp later described as “genius.” The Belgian striker showed great poise and technique to turn home the bouncing ball, giving Liverpool the advantage.

But still, an away goal from Barcelona would have been enough for them to win the tie, and it’s for this reason Liverpool goalkeeper Alisson, behind the impressive centre back pairing of Joel Matip and Virgil van Dijk, was arguably their most important player.

Saves throughout the game from Suarez, Coutinho, Jordi Alba and twice from Messi kept the clean sheet which saw Liverpool through.

They celebrated in front of the Kop as “You’ll Never Walk Alone” was played impromptu over the PA. Jordan Henderson joined in with the words to the fans’ European anthem, Allez Allez Allez, doing his media duties as captain while his teammates partied in front of the fans, epitomising his selfless, committed display.

“We knew at Anfield we could pull something special off,” Henderson said.

“It’s unbelievable. With the fans, all the lads, it’s a special night at Anfield like we’ve seen before, but this one is right up there with the best.”

Klopp agreed with his captain, and believes this side are writing a new chapter in Liverpool history.

“I’m really thankful that I can be part of something like that. It’s so special, it’s just amazing, unbelievable,” said the German.

“We said from the beginning we want to create our own history, not because we are not happy about having the history of the club, but because we need new chapters.

“The boys did it already, that’s unbelievable. It’s a fourth final in that time, and that’s pretty special already.”

The Liverpool boss is now looking ahead, commenting that he and his side have unfinished business after losing to Real Madrid in last season’s final.

“After last year we really felt we have to go back,” he said. 

“We have to go back, we cannot let it stand like this, that’s not possible, and now we get another chance and we will go for that.

“I’m not sure if [a comeback like this] will happen again because it’s so special. When I saw the boys after the game with tears in their eyes, that’s football, they are professionals. 

“This club touches you, and you feel much more than others in these moments.”

In his own post-match comments Barcelona manager Ernesto Valverde also referred to the Anfield crowd, commenting that Liverpool “were really driven on by the support of their own fans.”

It was a unique night, and one which everyone involved at Liverpool, from fans to players and staff, hope will be part of a story which ends with them lifting the Champions League trophy.