Alisson has warned Liverpool that opponents may have worked them out after the Reds were beaten 2-1 at Manchester United on Monday night.
Jurgen Klopp's side were second-best from the get-go and fell behind courtesy of Jadon Sancho's 15th-minute strike. It means that the Reds have conceded the first goal in seven successive Premier League matches, stretching back to the 1-1 draw with Tottenham back in May.
Although Liverpool grew into the game, they were undone on the counter-attack just after half-time as Marcus Rashford doubled United's lead, coolly slotting home past Alisson. The Reds pulled one back in the 81st minute through Mohamed Salah, but it was too little, too late as Liverpool suffered their first defeat of the season.
It has been a concerning start for the Reds, who have picked up just two points from a possible nine after they were held by newly-promoted Fulham and then Crystal Palace. Alisson has opened up on his side's defeat at United and admits they need to rectify the mistakes they made in the games to come.
"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," he told Liverpoolfc.com. "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."
Where will Liverpool finish this season? Let us know in the comments below!
The Reds were uncharacteristically-shaky in defence at Old Trafford, which has been a common theme so far this season, during which they have already shipped five goals. This is four more than at this stage last season, despite playing a similar level of opponents, namely Norwich, Burnley and Chelsea.
Sancho's opener led to a heated exchange between James Milner and Virgil van Dijk, with the former Manchester City midfielder appearing to criticise the Dutchman's attempts to prevent Sancho scoring, but Klopp played down any rumours of a rift between the pair.
Klopp said: "We don’t have any kind of issues. I have not any kind of issues in the team like this. That nobody is happy after you lose a game is completely normal, but this is not an explanation, not an excuse or whatever. It’s all fine there, in this department."