Jurgen Klopp has admitted he is concerned about his team following Monday's loss to Manchester United.
The Reds were heavy favourites going into Old Trafford after United lost 4-0 to Brentford last weekend.
But Erik ten Hag grabbed his first win as United boss thanks to goals from Marcus Rashford and Jadon Sancho, leaving Liverpool searching for the first victory of the season in the process.
Speaking after the game, Klopp told reporters: "They were really aggressive in the beginning, it was clear what will happen. They were more aggressive than us and they hit the post early on. They scored the goal and we took over and played the game we wanted to play. We were unlucky with situations against an opponent like United, it would have been helpful to score and go 1-1 at half time.
"The second goal does not help then it was a hectic game after our goal, definitely not the result we wanted.
"When we calmed down we have extreme number of shots for an away game at United. we should use more of these moments, the second half David de Gea made a fantastic save. If you score then the game turns then we did not have enough time or power in the end.
"When you are in a game like this fighting, these guys talk to each other and on the pitch it is a different conversation. It was not a perfect performance, it was clear United would get out of the blocks but we were not 100% ready.
"We had to keep chasing the game and that is not what you want to do. It makes it difficult with their counter-attacking threat. The second goal is hard to take, it was offside, but we have to work with it.
"We are in a tricky situation injury wise, we got through the week with 14, 15 senior players available and now have to make sure they don't get injured. We should have won this game, I know it sounds ridiculous but that is how I saw it.
"I am concerned about our situation, but that is how it is. We prepare for Bournemouth and Newcastle now."
