Liverpool, who are one of the six Premier League clubs invited into the ESL, did not don the white attire.
“I heard already there are warm-up shirts or whatever. We will not wear them because we cannot,” Klopp said.
“But if somebody thinks they have to remind us you have to earn the Champions League, that’s a real joke.
“It makes me angry as well, they were in our dressing room. If it was a Leeds idea, thank you very much. Nobody has to remind us, they should remind themselves.”
This was not the only protest taking place at Elland Road ahead of the Premier League clash.
An aeroplane flew over the stadium with a banner attached which read: “Say No To European Super League.”
Klopp has previously condemned the idea of a European Super League which has no promotion and relegation.
And when quizzed ahead of the clash with Leeds he said: “My feelings didn’t change. My opinion didn’t change [from when he has criticised Super League suggestions in the past]. I heard for the first time about it yesterday. I was trying to prepare for a difficult game.
“We got some information, not a lot. Most of the things in the newspapers. It’s a tough one. People are not happy with it, I can understand it. I can’t say a lot more because we were not involved in the process – not the players, not me – we didn’t know about it. We will have to wait how it develops.”
He added: “”I’m 53. Since I’ve been in professional football, the Champions League has been there. My aim was always to coach a team there. I have no issues with the Champions League.
“I like the competitive aspect of football. I like that West Ham might play in the Champions League. I don’t want them to because we want to but I like they have the chance. What can I say? It’s not easy.
“What I want to say as well, I’ve heard a few things but what I really don’t like, Liverpool football club is much more than some decisions.
“The most important part of football are the supporters and the team. We have to make sure nothing gets between that. I’ve heard there are banners but the players didn’t do anything wrong. We have to all stick together.
“We can show nobody has to walk alone in these moments. There are things to sort but nothing to do with the football or the relationship between the supporters and the team.
“In tough times you have to show you stick together. It doesn’t mean you have to agree with everything but again the boys did nothing wrong. I want to make sure everyone knows that.
“I understand it. I am in a different position. I don’t have all informations. I don’t know exactly why the 12 clubs did it. I know some things will change with football in the future. Some things have to change in football that is for sure.
“Usually you have to prepare these kinds of things, it takes time.”