Jurgen Klopp says he shares his Liverpool players' frustration with Everton after Saturday's Merseyside derby.
And the Reds boss criticised both Michael Oliver and David Coote for failing to punish goalkeeper Jordan Pickford for his shocking tackle on Virgil van Dijk.
The Reds have lost Van Dijk for what is likely to be the rest of the season after a high challenge from goalkeeper Pickford that left the defender needing knee surgery.
Liverpool will also be without Thiago Alcantara for tonight's Champions League opener against Ajax after a wild lunge from Richarlison that saw the Brazil international shown a straight red.
And while Klopp was keen to turn the conversation towards the Ajax game, the Liverpool boss couldn't hold back as he faced the media on the Johan Cruyff Arena.
"A couple of days ago, something happened that should not have happened on a football pitch," Klopp said. "It is not the first and the won't be the last, but I see it as similar to my players.
"Both challenges were difficult to accept. But we cannot change it now. I am here for the Champions League game."