Mohamed Salah to miss Champions League second leg against Barcelona

Liverpool will be without top scorer Mohamed Salah and Roberto Firmino as they attempt to overturn a 3-0 deficit in the second leg of their Champions League semi-final against Barcelona on Tuesday.

Salah was stretchered off with a head knock during Liverpool's 3-2 win over Newcastle on Saturday, while Firmino missed that game due to a groin injury.

"Both are not available for tomorrow," said Liverpool manager Jurgen Klopp on Monday.

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"It's a concussion for Mo. He would not be allowed to play. He feels Ok but it's not good enough from a medical point of view. He's desperate but we cannot do it."

Brazilian striker Firmino is out due to a groin injury.

"Two of the world's best strikers are not available tomorrow night and we have to score four goals against Barcelona to go through after 90 minutes," added Klopp.

"It doesn’t make life easier, but as long as we have 11 players on the pitch, we will try it."

Liverpool have a rich history of stunning comebacks in European football, most famously lifting the Champions League in 2005 after trailing the final 3-0 to AC Milan at half-time.

In Klopp's first season in charge in the quarter-finals of the Europa League in 2016, the Reds also came from 3-1 down in the final 25 minutes to beat his old side Borussia Dortmund 4-3.

However, the German coach is aware of the extra difficulty of not just scoring at least three against the Spanish champions, but also not conceding a vital away goal to the likes of Lionel Messi and Luis Suarez that would leave Liverpool needing to score five to progress.

"I imagine the place will be rocking even before we score to be honest, but we not only have to score, we have to deny Barcelona from scoring," he added.

"It doesn't happen too often that Barcelona don't score at all. We know how big the challenge is.

"This team is so wonderful we will try 100 per cent, but that doesn't mean it will all work out."

While Liverpool edged a bruising battle with Newcastle to remain in the hunt for a first Premier League title in 29 years, Barcelona boss Ernesto Valverde could afford the luxury of making 11 changes for a 2-0 defeat at Celta Vigo on Saturday having already sealed the La Liga title.

And Klopp admitted he could have one eye on Sunday's final league game of the season at home to Wolves with his team selection.

"We have to make a lot of decisions. Tomorrow night will be the third game in six days and Barcelona changed 11 positions on Saturday, so that is a massive difference as well of course," he said.

"Together with our supporters it was a long season and there is at least a little chance to make it even longer.

"But if not, these are the last two home games of an incredible season and I think we should celebrate that with a good performance on the pitch and a very, very good performance in the stands."