Jurgen Klopp called Thursday’s 3-0 home defeat to Atalanta a “low point” in Liverpool’s season as their Europa League hopes were left hanging by a thread.

Liverpool looked flat throughout the quarter-final first leg and ended the night perhaps fortunate Atalanta had not taken one of the many late chances they had to add to a lead given to them by Gianluca Scamacca’s brace and a late Mario Pasalic goal.

Harvey Elliott hit the post in the first half and Mo Salah had a goal ruled out for offside in the second, but Liverpool lacked the spark needed to beat a well-organised Atalanta side, who will be confident of finishing the job next Thursday in Bergamo.

Before Klopp can think about that match, he must lift his players for Sunday’s visit of Crystal Palace in the tight battle at the top of the Premier League table.

“It was a really bad game, oh my God,” Klopp said after Liverpool’s first home defeat in nearly 14 months.

“We started well, really well and then didn’t continue. They broke, they scored and we just lost the plot a little bit. We were here and there in midfield, I didn’t recognise it.

“It was really strange but in football terms it was tactical discipline. There was a big chance for Darwin (Nunez) and then it was unlucky with Harvey, but they scored and we kept playing into their hands.

“We played a bad game and we we deserved to lose. We must feel that now but we have exactly this night to feel bad about it and then we have to build up for Palace.”

Klopp made six changes to his side following Sunday’s 2-2 draw with Manchester United, but his bid to freshen up the side failed, and their chances of ending the German’s reign with a showpiece final in Dublin have taken a huge hit.

“I believe it’s not the moment to talk about that,” Klopp said when asked if the tie was still alive. “I’m not in the mood to think about the game in a week’s time when we have another in between.

“Definitely we have to try, we want to win the game but now is not the moment to have a big mouth. We have to play a really good game.

“Where we are, this is probably a low point for us performance-wise so it should be possible to play a little bit better and we can play a lot better. But first and foremost it’s about Sunday now.”

The final whistle brought huge celebrations for Atalanta and their travelling fans. Gian Piero Gasperini said he wanted to enjoy the moment, but warned the job is only half done.

“Tonight was amazing,” he said through a translator. “I didn’t make any changes until 10 minutes to go and the only one change because it is hard to touch something about a team that held until the 90th minute in the best way.

“Such a victory, it’s OK to celebrate but we all know we ill have to conquer everything in seven days’ time in Bergamo because Liverpool is a really strong team and they can score goals quickly.

“We will have to play another very precise game in every aspect and repeat tonight’s game because everything remains to be played. But our advantage makes us hope for the best.”