Jamie Carragher has labelled the actions of Everton player Ramiro Funes Mori as "embarrassing" after the defender was shown a straight red card in Wednesday's Merseyside derby.
Mori became the 21st player to receive a red card in the fixture's Premier League history when he lunged in on Divock Origi early in the second half.
The tackle was bad enough to convince the referee to issue a straight red card and also brought a premature end to the Liverpool striker's night.
It was a tackle few players would be proud of, but Mori seemed aggrieved at the referee's decision to send him off and saluted the Everton fans as he walked off the pitch, assumably in a show of defiance.
It was an action that gave Carragher cause to criticise. The former Liverpool defender says the actions of Mori were "nonsense" and thinks he has let himself and his club down.
Speaking on Sky Sports after the match, he said: "He has let himself down with the challenge.
"It happens in football. I've made bad challenges and other players have made bad challenges, but going off the pitch he was kissing his badge to the Everton fans.
"I was made up he went off in some ways because it helped Liverpool get more goals, but why was he kissing the badge?
"Number one, he has only been here for two minutes and number two, why is he playing to the crowd because he has injured a Liverpool player? Are they going to be happy with that?
"They were getting battered in the game and he's now going to miss the biggest game of the season when they've got Jagielka out.
"It's embarrassing. What is he doing? Everton fans won't fall for that nonsense."
Originally, it was feared that Mori had broken Origi's leg. Connecting just about the ankle, the Belgian went down in agony and Liverpool's medical team needed over five minutes to get him off the field.
Jurgen Klopp, who was happy with the 4-0 victory for his side, has since confirmed that it is not broken but did not want to say how serious the injury was. Indeed, he could have significant ligament damage that would bring a premature end his season and most likely rule him out of Euro 2016.
"I would like to say yes [I enjoyed the win] but [the injury] to Divock Origi cost me a little bit of joy," Klopp told Sky Sports.
"Of course, the first half was a derby. Our side's passing was okay but we could have played better. Then we scored the two goals, wonderful goals, and second-half the game changed completely with the red card and the injury to Divock, and they had no chance anymore.
"We had a lot of opportunities to score goals, their goalkeeper did a good job and it's 4-0. Usually, it's really great, I'd like to say I'm 100 per cent happy but I cannot ignore the situation [with Origi].
"I can't say too much, I didn't see the pictures until now but everyone I met said 'Oh, it was disgusting or awful', or however you want to say it. But it's not broken, it's a twisted ankle ligament, we have to wait now.
"I saw him on crutches here walking around but he had a little smile on his face so we have to see."