Jurgen Klopp: 'Mainz 05 defeat is important lesson for Liverpool'

Liverpool manager Jurgen Klopp has warned his side that they must learn from their 4-0 defeat at the hands of Mainz 05 this afternoon.

The Reds slumped to the heavy defeat just one day after beating Barcelona by the same scoreline as Klopp endured a miserable return to his former club.

The German admitted that it was a poor result just one week before the start of the new Premier League season, but insists that his side are still in a good place heading into the upcoming campaign.

"At half time I told them that's not how it should be. It was hard for us today, 100%. But that's a very important lesson for us. If it's hard – and there will be some hard moments this season – we have to trust our style of play, our philosophy and all of the things we usually do, how we want to defend, final organisation and if you lose organisation in a moment, that can happen; find it back again and use it, not suffer under it," he told the club's official website.

"You could see the opponent today was much greedier than we were. We came here at 2am and it's not perfect, but they are only things to explain the circumstances. We created a very tough situation. Of course, we should not lose 4-0 but it happened and we can work with it. Yesterday we could not stop smiling but that was not right, and today if we cannot stop being disappointed that's not right either. It's not between these two poles, if you want.

"We are in a good way, 100%. And if we have a proper lineup, which we can have of course for next week, then we will be strong. Until now we did a really good job. But in moments like this today, we need to find other solutions than we found. This work will never stop. The lineup was a compromise, changing players and we flew a few players in this morning. That's not optimum and not very good. But we always expect of ourselves that we have to do better and we should have done better."

Liverpool will begin the new Premier League season away to Arsenal next Sunday.