They are joined by Barcelona, Real Madrid, Atletico Madrid, AC Milan, Inter Milan and Juventus.
The European Super League will eventually consist of 15 clubs permanently every season with five other teams included who qualify via other means.
The news has been widely slammed by pundits, players, managers, MPs and the governing bodies in football.
That has led two clubs to seriously consider pulling out of the proposed Super League.
Oliver Holt, the Chief Sports Writer for the Mail on Sunday, tweeted in the early hours of Tuesday: "Hearing the first cracks may be beginning to appear in the ugly, misshapen edifice of the ESL. Told two English clubs are close to losing their nerve."
Liverpool boss Jurgen Klopp was clear in his criticism of the Super League idea last night speaking after the 1-1 draw with Leeds.
European Super League news: Two Big Six clubs are having doubts (Image: GETTY)
Klopp said: "I do not think it is a great idea.
“I like the fact that West Ham might play in the Champions League next year. I don’t want them to, to be honest, because we want to do that, but I like that they have the chance.
“One thing I can understand people think is not right is the competitiveness. I can understand the fans are angry.”
Liverpool captain James Milner agreed with his manager and fans and believes it would be bad for the game for this competition to exist.
“There is a lot of questions,” he told Sky Sports.
“I can only say my personal opinion, I don’t like it and hopefully it doesn’t happen. I can only imagine what has been said about it and I probably agree with most of it.
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“I think for us we just try and concentrate on the game, there is obviously a lot going on, but for us we just have to try and be professional and concentrate on the game that is the only thing we can control.”
Leeds striker Patrick Bamford was also in agreement with Klopp and Milner.
“We’ve just seen what pretty much everyone else has seen on Twitter,” Bamford said.
“It’s amazing the amount of uproar that comes in to the game when somebody’s pockets are being hurt.
“It’s a shame it’s not like that when all the things that go wrong with things at the minute, racism and stuff like that.
“It’s something we talk about but once you’re on the pitch you’re not thinking about stuff that goes on outside the ground.
European Super League news: Jurgen Klopp is against the idea (Image: GETTY)