UEFA has been forced to abandon its attempt to ban the three clubs still committed to a European Super League - Barcelona, Real Madrid and Juventus - from the Champions League.
A Spanish court injunction in June led to UEFA initially pausing the disciplinary case against the clubs who refused to renounce the rebel project which collapsed in April.
A renewed demand last week from a Madrid judge for UEFA officials to comply with the ruling not to sanction the clubs led to the disciplinary case being officially scrapped on Monday night.
"In the matter related to a potential violation of UEFA's legal framework in connection with the so called 'Super League, the UEFA Appeals Body has declared today the proceedings null and void, as if the proceedings had never been opened," the governing body said in a statement.
The UEFA case was launched in the fallout from the stunning launch of the Super League by 12 clubs in April.
The plan to split from the existing Champions League run by UEFA collapsed within 48 hours after the English clubs - Arsenal, Chelsea, Liverpool, Tottenham and Manchester clubs United and City - pulled out amid a backlash from their own fans and the government.
Three of the other Super League founding members - AC Milan, Inter Milan and Atletico Madrid - also quickly backed out.
The nine clubs agreed on a settlement deal with UEFA in which they would forfeit 5 per cent of their prize money from a single season in European competition and pay a combined 15 million euros ($25.1m) as a "gesture of goodwill" to benefit children, youth and grassroots football.
No monies will now be handed over.
A Spanish judge last week gave UEFA five days to confirm it will abide by the court's ruling and not punish the teams for their involvement in the Super League.
Their case was also notified by the judge in Madrid to the European Court of Justice in Luxembourg.
A deadline for submissions to the court is next month.
UEFA could open a new disciplinary case at a later point against Barcelona, Real Madrid and Juventus if it wins the European case.
UEFA said it "will continue to take all necessary steps, in strict accordance with national and EU law, in order to defend the interests of UEFA and of all football stakeholders."