Jurgen Klopp has claimed that he "saw only one team playing" as Liverpool were held to a 1-1 draw against Everton in Sunday's Merseyside derby at Anfield.
The Reds took the lead against their bitter rivals through Mohamed Salah's 42nd-minute strike and dominated proceedings throughout the game with 79% possession.
However, the points were shared due to Wayne Rooney's penalty after Dominic Calvert-Lewin was bundled over by Dejan Lovren in the box, prompting referee Craig Pawson to point to the spot.
"Our performance was good," Klopp told Sky Sports News. "We didn't score often enough. I saw only one team playing. I can't believe the situation with all the challenges. We were clean and didn't make any fouls.
"There is always one nasty one - [Gylfi] Sigurdsson made that. A clear red card. You see the picture of the penalty. Calvert-Lewin is smart but it is nothing. But it is a penalty and one team can celebrate and we can't.
"I don't understand why the ref is doing [giving the penalty]. I didn't use one swear word. Only one team is trying over 95 minutes to win it. The other team are not in our box and didn't have a shot on target bar the penalty."
Liverpool remain fourth in the table and return to Premier League action on Wednesday against West Bromwich Albion.
