Alisson Becker admits teams are learning how to exploit the way Liverpool play - as he urged the Reds to regain their mean streak by being more "aggressive" in defence.
Jurgen Klopp's side are still without a Premier League win this season after slumping to a dismal 2-1 reverse at bitter North West rivals Manchester United on Monday.
While Liverpool's first league defeat since December, it ensured they continue to suffer their worst start to a top-flight campaign in a decade having already fallen seven points off the lead after just three games.
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And Alisson believes opposing teams are finding it too easy to capitalise on the weaknesses in Liverpool's much-scrutinised and unique approach.
“Teams, when they play against us, they know the way we play and they try to exploit that and they try to use that against us," said the goalkeeper. "(It’s) something that most times works for us, (but) sometimes we get punished for that and tonight it is what happened.
“Sometimes we have to be more perfect in a game. It’s difficult to do that, but as a team being together we can do that and we can improve. We just have to keep working hard in our game in everything and defending with the ball.
“How do we change it? With our attitude changing that. Sometimes during the games we make a few mistakes that you get punished for that."
Liverpool were missing 11 senior players through injury and suspension at Old Trafford after Naby Keita withdrew the day before the game with an injury that requires further assessment.
Alisson, though, is adamant there was no reason the Reds should have been surprised by United's high-octane start to the game that ultimately earned them victory.
"We knew they could play like that and prepared the game for different situations, but sometimes in the match you have to adapt as a team but we knew already," said the Brazil international.
"We trained and prepared for the game thinking different possibilities. I believe we were well prepared but could execute better on the pitch by making better choices and better moves and being a little bit more aggressive in a good way defensive-wise."
Speaking to liverpoolfc.com, Alisson added: “It’s really difficult to come here and speak about a defeat. We believe that we played in a few moments in the game better than them. But in a game you have to do everything to win and to make better your performance - we couldn’t do that.
“We all agree that we must improve our performance. We have to be more consistent, we have to come back to the clean sheets again and we have to play better with the ball making better choices - we all agree on that. This is what we are going to chase for the next game."
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