UEFA President Aleksander Ceferin has made it clear the rebel clubs behind the failed Super League "will have to suffer the consequences of their actions".
The failed attempt to create an elite league, as a direct rival to the Champions League, has left UEFA President Ceferin newly emboldened at the helm of Europe's governing body.
The "Big Six" English Premier League teams abandoned the project on Tuesday leaving the Italian and Spanish teams, with the exception of Real Madrid, to accept the plan had failed.
"The doors of UEFA are open, and at the same time everyone will have to suffer the consequences for their actions," Ceferin told Slovenian television station POP TV on Thursday.
UEFA holds an executive committee meeting on Friday.
"I expect a lot more to happen by Friday. Believe me, anyone who says he is completely calm in this situation is not telling the truth," Ceferin said.
"I received SMS (text) support from practically all clubs in Europe. So now we expect everyone to realise their mistake and suffer the appropriate consequences," he said.
While Ceferin did not elaborate on what price might be paid by the clubs, he did indicate that Real Madrid's involvement in their Champions League semi-final with Chelsea was not likely to be impacted, given the complications for broadcasters.
"There is a relatively small chance that this match will not take place next week. But it will be a little different in the future," he said.
UEFA's lawyers are expected to offer options over response measures at Friday's meeting and bans and suspensions could be justified under the organisation's rule prohibiting unauthorised "combinations" or "alliances" of clubs.
"There will be some members who call for punishment but lawyers are more likely to be interested in protecting the organisation and tightening up the rulebook," said one source close to UEFA.
However, Ceferin will be aware that clubs who have been punished for breaching Financial Fair Play regulations will take a dim view of other teams getting away with making a move which could have destroyed the lucrative Champions League.
More broadly, there is also likely to be pressure for UEFA to rethink its Champions League reform plan for the post-2024 competition and the financial redistribution model.
"There is a likelihood that UEFA will look at these again, I think they may go backwards," said one executive at a European sports broadcaster
There will be consequences in English football as well.
As well as reports of the big clubs being pushed out of their positions on Premier League committees, the UK government, having played a key role in pressuring the Big Six to withdraw from the Super League, is to hold a review of the game.
British Prime Minister Boris Johnson has said the review, headed by ex-sports minister Tracey Crouch, "will do a root and branch investigation into the governance of football and what we can do to promote the role of fans in that governance".