Gini Wijnaldum admits Liverpool were not sharp enough in Thursday's shock loss to Burnley.
The result leaves Liverpool's title chances in serious jeopardy.
"A really tough one," Wijnaldum said after the game. "Before the game we had good intentions to play against Burnley.
"We wanted to play good possession play. We created enough to score a goal but unfortunately we couldn't. We were not sharp enough and they got the penalty.
"We had 100% chances. Now in the situation we are in we are struggling to score. It is difficult to explain. People from outside will say we don't have confidence. I still think we do. You shoot against the keeper and a lot of chances we get we are not 100% greedy to score a goal. We have to keep on going.
"We have to not think a bout a tricky moment but perform. The next game is Manchester United and we have to try and win it."
