Jurgen Klopp
Jurgen Klopp suggested he is unsure of his first-choice goalkeeper Getty Images

Liverpool manager Jurgen Klopp has admitted he is not certain of his first-choice goalkeeper at Anfield. The German played Loris Karius in goal for the Reds EFL Cup win against Derby County earlier this week – but could revert to Simon Mignolet for their Premier League encounter against Hull City on Saturday (24 September).

Karius, 23, joined Liverpool from Mainz during the summer transfer window and made a positive impression as the Reds eased to a 3-0 win at Pride Park on Tuesday (20 September). Klopp has refused to reveal who will start in goal for Liverpool's next Premier League fixture, admitting he has an important decision to make.

"It is not place to announce line-ups but we have to think about it. Obviously it's different to changing midfielder," the Liverpool manager explained during a pre-match press conference, according to the BBC. "When I decide it is a decision for one player and not against another player."

Liverpool have made a positive start to their league campaign, defeating Arsenal and Chelsea and drawing against Tottenham Hotspur. But Klopp has warned his players that they must have the same focus and intensity against the so-called lesser sides in the Premier League.

"We didn't care about the opponent before Chelsea, Tottenham or Arsenal. It's what we do, not the name [of the opponent]," the Liverpool boss shared, according to The Mirror. "It's positive to create chances but when we miss, we can't go, 'not the same, s**t... rubbish again'. We need to be positive again. Everybody has their role. We have to learn it."

However, Klopp also stressed that his players need the Anfield crowd to get behind them against the smaller teams, as they do against the better sides. "We need the atmosphere [to help us]," he explained. "Why should it be easier? If we can beat teams that people think are stronger than us, why should we be surprised when teams weaker than us beat us?

"It's not about the attitude of the players, I can say that. Let's try to create an atmosphere when everybody is on their performance."