Liverpool boss Jurgen Klopp says defeat at Napoli was the worst performance in the seven years he's been in charge.

Liverpool were beaten 4-1 by Napoli in their Champions League Group A opener last Wednesday, in what Klopp said was the worst game the team had played since he took charge in 2015.

He described up to nine of his starting XI for the game as playing below their capability, and said they had used the days since to analyse and train for the Ajax match.

Klopp said: "We had a meeting with the players, I watched the [Napoli] game and it was a real horror to be honest. It was the worst game we played since I am here.

"How can you get confidence in football? It all starts with defending the ball, and that's what we have to do. If we can get momentum, then we can play football."

It has been six days since Liverpool last played, with all Premier League matches at the weekend postponed following the death of Queen Elizabeth II.

Asked if the break could impact Liverpool's rhythm, Klopp added: "Did you see our game [against Napoli]? If we could lose this kind of rhythm it would be really cool."