Danny Ings has added to the injury crisis confronting Jurgen Klopp after the Liverpool striker was ruled out for the season.

Ings, who only made his England debut in Lithuania on Monday, suffered a partial tear of his anterior cruciate ligament when he twisted during his first training session under the new Liverpool manager at Melwood on Wednesday.

He initially thought it was just a meniscus problem, as he was able to walk and jog, but scans revealed the extent of the damage and the devastating news was delivered on the same day Klopp also discovered that Joe Gomez had sustained the same injury playing for England’s Under 21s. Both Ings and Gomez will undergo the same operation next week, with the anticipated recovery time being between six and nine months.

Liverpool have been dealt another blow after it emerged Danny Ings (centre) would miss the rest of the season

The former Burnley man made his senior debut for England in Monday night's win against Lithuania

Joe Gomez has also been ruled out for the season after sustaining a cruciate knee ligament injury

Ings was hurt in a challenge during a routine training session at Melwood on Wednesday

It is a huge blow for Klopp, who has walked into Anfield to find a number of key players sidelined.

Jordan Henderson, Liverpool’s captain, is making good progress in his recovery from a broken foot — but he is not expected to be available until mid-November, while defender Jon Flanagan is not expected to play again before Christmas because of a persistent knee problem.

On top of that, striker Christian Benteke — Liverpool’s £32.5million summer signing — is not going to be available for either of Klopp’s opening fixtures — against Tottenham in the Barclays Premier League on Saturday or Rubin Kazan in the Europa League on Thursday — because of a hamstring injury. Another summer signing, £29m striker Roberto Firmino, is also absent due a back problem.

It leaves Klopp with only two recognised strikers and one senior left back, but the German, who faced his first routine press conference on Thursday, says there is no point worrying about those he is without.

‘I learned first you do not think about the players who are not available at this moment because there is no chance to get lucky if you do this all of the time,’ said Klopp.

‘Two strikers: I don’t need more. When you start, if you have more it’s perfect. But you have to think how you can react.’

There was no disguising, however, the disappointment he felt for 18-year-old Gomez. He was substituted late on during England’s 3-0 win over Kazakhstan in Coventry on Tuesday and the full extent of how severely he had been hurt only emerged when he returned to Melwood.

Jurgen Klopp has only been at Liverpool a matter of days but already has two long-term injuries

The injury to Ings leaves Daniel Sturridge (above) and Divock Origi as Klopp's only fit strikers

Klopp took his first full training session with the Liverpool squad on Wednesday morning

Klopp said: ‘Gomez came here. I met him first time. What a wonderful young boy — tall, muscles in the right position. Everything is fine with him but now he is injured — an ACL, yeah — now it goes this way. We have to make further diagnostics and we will see when he gets operated.

‘From this point on, he can go in the other direction. He can count the days back. He is a very young guy. It is not the best day in his life, of course, but I am pretty good at waiting for players. Young players especially. This is home. We will do everything to help him come back as soon as possible.’

Gomez had been able to walk back to the dressing room after receiving treatment, so the seriousness left those who had been with him at the Ricoh Arena startled.

England Under 21 head coach Gareth Southgate said: ‘I’d like to express how disappointed we are for Joe and the club. First and foremost, our thoughts and best wishes are with him.’

Klopp says he expects Christian Benteke to be ready for the game against Southampton on Sunday week

The country's media flocked to hear Klopp speak at Thursday lunchtime before his first game

The injuries to Ings and Gomez over- shadowed what was otherwise a fascinating first conference with Klopp, who strode into the Melwood media auditorium right on cue at 12.30pm and proceeded to speak with eloquence, passion and humour.

He may have been left bemused by what was one of the biggest turn-outs Melwood has witnessed for a conference of this kind — Klopp cannot work out why there is such interest in him — but he is clear on what he has to do to start moving forward.

‘I know how I want to play,’ said Klopp. ‘All these guys are able to play good football. That is what they did in the past and it’s the reason they are here. Now we have to open our chests. Let’s run, fight, shoot, defend and attack together.

‘Do all these things and in your best dream this is what football looks like.’

Klopp arriving at Melwood in high spirits on Thursday morning ahead of his first pre-match press conference

'I want to see that they like what they do,' the German said before his first game away at Tottenham

It was also clear to see that a four-month sabbatical he took after leaving Borussia Dortmund has left him invigorated.

‘The best moment in this week was the first moment when I was back on the pitch,’ said Klopp. ‘I have to cool down myself a little bit by not giving them too much information because they had no holidays.

‘The sport side of things is until now, perfect. OK, the injuries are not good but we cannot change that. The rest is good.

‘The staff, all the people working here are very kind and very nice people. They all want to help us. They have a big heart for LFC. It feels good to work here.’

Tottenham, Liverpool’s opponents on Saturday are facing a striker crisis of their own after it emerged that £22m forward Heung-min Son could miss up to six more games with his foot injury.

When pushed on how many weeks Son will be out, Tottenham manager Mauricio Pochettino said: ‘One or two or three. His injury was in his foot but it’s okay. We are happy with him. Maybe in a few weeks he will be back.’