Jurgen Klopp doesn't shy away from making his voice heard.
Even if Liverpool are 5-0 up and cruising to victory, as he showed during his side's Champions League victory over Atalanta on Tuesday.
Atalanta wing-back Johan Mojica went down a little easy following a challenge from Georginio Wijnaldum, and Klopp wasn't impressed with what he saw.
According to the Liverpool Echo, the German could be heard shouting from the touchline: "Are you serious!? I broke my nose five times, it was not one time a foul!"
Klopp's outburst earned him a yellow card from referee Ovidiu Hategan.
Liverpool played a perfect match against the Serie A outfit in Italy, netting five and competing a clean sheet on the road.
Diogo Jota was Liverpool's man of the match, and has given Klopp a decision to make when he picks his next teamsheet. But the Reds boss insists Jota's quality performance hasn't given him a selection headache.
"Good performances never give me a headache," said Klopp.
"That was the decision tonight, it made sense to use the shape Diogo was in, and because of the way Atalanta plays and defends, it made sense that the skillset of Diogo helps.
"But the world is sometimes really in a bad place when the moment someone's shining, we speak immediately about another player who had played what feels like 500 games in a row.
"We would not even be in the Champions League if Bobby Firmino wasn't with us, and immediately I have to explain why he's not in the team. He will be in the team.
"For a lot of people in the world, if you asked them what makes Liverpool on Sunday special, they would say the way Bobby Firmino is playing.
"It's important for us that we have more than 11, and tonight Diogo used his shape in an incredible way and played a super, super game.
"But that says nothing about Bobby and has nothing to do with causing me headaches. I'm more than happy that the boys played like that tonight."
Should Klopp start Jota over Firmino more often? Have your say here.
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