“I am disappointed but the result on the scoresheet does not really reflect how well we played and what the game was like,” said the Holland captain.

“We had some big chances – should have scored one and they could have scored a fourth – but it is 3-0 and we have a big job to do at Anfield.

“But we have shown throughout the season that we never give up. We need everyone to be together and let’s see how it goes.

“The only thing is that we can only keep believing and keep working hard for each other and stay positive and there is no reason to panic.

“We believe. We will keep believing.”

The scoreline was harsh on Klopp’s side as, for a 20-minute spell in the second half, they had their hosts under pressure to the extent home manager Ernesto Valverde changed formation and brought on an extra defender.

But not being able to take their chances against a side like Barcelona ultimately cost Liverpool.

“I think after the break we kept pressing and kept playing well and we were unlucky we did not score,” added Van Dijk, whose side were beaten finalists in the competition last year.

“We know how tough it can be with the quality they have throughout the pitch but we showed at times we could definitely create good chances against them and make it difficult.

“We had to be brave and we had to defend bravely and at times it was one v one with me and Joe (Gomez) and (Luis) Suarez and Messi.

“But especially with the pressing we had to stay brave and there are plenty of things we have to improve on.

“Overall, disappointed with the result but there were so many things that happened so we have to build on that.

“They still have that extra quality but we will try to do everything possible to go through.”

Attention now turns to Saturday’s trip to Newcastle, which Liverpool have to win to maintain the pressure on Premier League leaders Manchester City, who face Leicester on Monday.

“Obviously now the focus is on Newcastle which is a big job and after that we try everything to go through,” said Van Dijk.

“It is a totally different challenge. It will be tough up there and not easy to get a result but we will try everything.

“We have to stay confident. This (result) should not put us down or anything and there is plenty of positives to take even though there are things to improve.”

Liverpool are still assessing midfielder Naby Keita’s injury but it would seem likely his season is now over.

The Guinea international was forced off midway through the first half against Barcelona with what is understood to be a groin injury and he was seen limping heavily as he walked to the team coach after the match.

While the club have not confirmed Keita will miss their two remaining Premier League matches against Newcastle and Wolves – and next week’s return leg – his chances of recovering are remote.

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