The Reds suffered something of a surprise 2-0 defeat by Red Star Belgrade on Tuesday night in Serbia to deal a blow to their hopes of reaching the first knockout round of Europe’s elite club competition.
Milan Pavkov scored twice in the first half to hand the home side the victory and increase the competition in Group C heading into the fifth and six games of the group stage.
Liverpool FC are now second in their group and level on points with Napoli, while Paris Saint-Germain are just a point behind the Merseyside outfit.
The Reds have dropped points in four of their last seven games in all competitions after a flying start to the new campaign.
And Klopp has warned his squad that they cannot afford to let slip any more points if they want to make it through to the last 16.
Asked if Liverpool FC’s performances had dropped in recent months, Klopp replied in his post-match news conference on Tuesday night: “In the game [yes], not in general.
“I think it made sense to make a few changes, a few we had to make and a few we wanted to.
“I do not say it is serious we lost two times, but of course we have to make sure that it will not happen again, otherwise it will be difficult, because the next game is already an away game again, and then a tough home game.”
Speaking about Tuesday’s loss, Klopp continued: “For us it was not clicking, it was not easy. It’s really difficult then to find your mojo back, really difficult to do the right thing in the right moment, or naturally, because you always try to solve the problem actually.
“We gave them too many set pieces before they scored, so they could kind of train it. The second goal was kind of out of the blue, we had the ball and gave it away. That is not cool in a game like this, in an atmosphere like this, in a situation like this. It was a blow.”
Liverpool FC will aim to get back to winning ways in the Premier League on Sunday lunchtime when they host Fulham at Anfield before the final international break of the season.
The Reds are currently in third place in the Premier League table and two points behind leaders Manchester City after 11 games.
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