Liverpool boss Jurgen Klopp admits he wants to improve on Thursday's defeat to Hertha Berlin.

While the result is unimportant, Klopp says improvements can be made.

He told the club's website: "We have to improve in all departments, of course. We played some really good stuff, that's true, but if we didn't score from it, who cares? That's football. For not losing football games you have to make sure that you don't concede goals. The goals [against] were easy to explain, why they got it, and probably to explain as well why the players involved in the goal were not where they maybe should have been.

"I absolutely prefer to make these kind of mistakes in pre-season because you can talk about it, it's easy; yes, we criticise it, but not in the manner where we say on top of that we lost three very important points. It is just a pre-season game, make the analysis and carry on.

"It is clear we have to improve; we have to improve offensively as well. But from a formation point of view – how compact the formation is and so on – we have some space [to improve], but that's always the same. When I look back at the years, it was always learning defending again, like pressing again, is as much to do with timing. Timing has to do with a clear brain and fresh legs, but you never have [them] – fresh legs especially – in the pre-season.

"It is pretty much not possible, but you still want it. In training it looks good and when we don't do it for 45 minutes, just like two or three or four minutes, and really adjust in the right way then it looks good and so I am happy with it, we have to just make sure we get the right mindset for the first game because that's the biggest difference – it's not a pre-season friendly anymore, we have to go with all we have. We only do all of these things because we want to win football games – we want to win many football games – and win something special."