Real Madrid president Florentino Perez has claimed the signings of Erling Haaland and Kylian Mbappe will be 'impossible' for anyone without the European Super League.
Perez has spearheaded efforts to create the breakaway league, featuring at least 12 of the continent's leading clubs and backed by over £4billion in JP Morgan cash.
But those efforts appear doomed to failure with only Real and Barcelona left out of the original dozen that committed to the rival competition to UEFA's Champions League.
Perez insisted the project remained alive on Wednesday night and claimed that nobody will be able to afford the likes of Paris Saint-Germain forward Mbappe or Borussia Dortmund striker Haaland without the cash injection the Super League could provide.
'In general, there will not be big transfers this summer,' Perez told El Larguero. 'When money does not flow from the rich clubs to the poor clubs, everyone suffers.
'It's impossible to make signings like Mbappe and Haaland, in general, not just for Real Madrid, without the Super League.'
The Bernabeu club have been linked with both players ahead of the summer window.
And Perez added: 'If we don't sign Mbappe this summer, I don't think any fan will shoot himself in the head. They know we're doing our best, and if things don't happen, it's because they're impossible.'
It came as the defiant Real president refused to back down over his controversial Super League proposals, which collapsed after the six Premier League clubs involved all withdrew on Tuesday night amid a furious fan backlash.
Atletico Madrid, Juventus, AC Milan and Inter Milan all pulled out on Wednesday but Perez still came out fighting, insisting the 12 founding members could not leave because they all signed a legally 'binding contract.'
'I am a bit sad, disappointed,' he started. 'We have been working three years on this project, on fighting the current financial situation in Spanish football. It is easy to understand - you cannot touch La Liga, so you look for more money midweek.
'The leagues are sacred. What we can change is the midweek games. The Champions League is obsolete – it's only interesting from the quarter-finals onwards.
'Among the 12 teams we lost €650million last season. This season two or three more times. This format clearly does not work.'