Chelsea boss Mauricio Pochettino admits his side did not perform against Liverpool at Anfield.
The Blues were battered by the league leaders on Wednesday night, losing 4-1.
Despite having two legitimate penalty claims, many felt that Chelsea were lucky to not lose by a wider margin.
Post-game, Pochettino told reporters: "I think it's so clear; they were more aggressive than us. For us it was difficult to connect and play. It was difficult to recover the ball at the first or the second touch. We lose the ball so easily. They won all the duels.
"When we say they compete better, in all of the areas they were better than us. This is why. Yes, in the second-half of the game, at 2-0, we have a clear chance with Mudryk to score, maybe it would build our confidence and start to feel better.
"Maybe there's a penalty in the action of Nkunku to change the game. But even if we score and draw, I think it's disappointing because our performance wasn't great. It's good to have this type of feeling. It's only a game but it has provided us with good information.
"We want to be there and compete with a team like Liverpool who have been very good over the last few years, one of the best in England. We need to improve and learn from this type of game."