UEFA chief Aleksander Ceferin Marco BERTORELLO. AFP
Twelve of Europe's biggest clubs signed up to the proposed new competition last April but it collapsed within days following a fierce backlash from their own players and fans, as well as governments and football's governing bodies.
Nine clubs distanced themselves from the project but Real Madrid, Barcelona and Juventus remain on board with the concept and former England full-back Gary Neville warned this week that it could make a comeback.
Ceferin, addressing the Financial Times Business of Football Summit in London via videoconference, said he was "sick and tired" of speaking about the Super League.
"Look, first they launched this nonsense of an idea in the middle of a pandemic," he said, speaking from the European governing body's headquarters in Switzerland.
"Now we are reading articles every day they are planning to launch another idea in the middle of war (in Ukraine). They obviously live in a parallel world.
"While we are saving players, together with other stakeholders, and work to help in a terrible situation, they work on a project like that."
He added: "This is complete nonsense and everyone except them knows it."
Ceferin took aim at Juventus supremo Andrea Agnelli -- formerly chairman of the European Club Association -- who was one of the driving forces behind the original Super League proposal, aided by Real Madrid's Florentino Perez.
"It is interesting they are criticising UEFA, criticising the ECA. One of them was the chairman of the ECA and I have a quote where he was praising the system a week before they launched the first Super League," he said.
"Fans are obviously not important to them because fans launched a petition called no more Super Leagues and they don't care about it."
Agnelli is in London for the summit and is due to speak later on Thursday.
Ceferin said clubs were free to organise their own competitions but could no longer expect to take part in UEFA competitions such as the Champions League if they broke away from the existing football structure.
He also rejected comparisons between the proposed Champions League reforms planned for 2024 and the Super League.
Barcelona have already crashed out the Champions League at the group stages for the first time since the 2000/01 season, while Madrid and Juventus failed to win the first legs of their last 16 ties.
All three are feeling the economic squeeze of trying to compete with the likes of gulf state-backed Manchester City and Paris Saint-Germain, while England's Premier League clubs have a huge advantage over their European rivals due to television rights sales.
La Liga president Javier Tebas accused those still promoting the Super League of being more deceitful than Russia's President Vladimir Putin.
"Every time I hear communication from these (Super League) clubs I get cross, they lie more than Putin to be honest," Tebas said via a translator.
"All the domestic leagues, we must be dumb. All of us unanimously, we all say that (Super League) hurts the domestic leagues. But now these three are saying 'no, no, no, don't worry'. For me it's an insult. They do huge harm."
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