Former Chelsea boss Avram Grant says owners of top clubs have made a mistake by thinking football has similarities to the NBA.
Ramon Calderon told Stats Perform News that president Florentino Perez has seriously damaged his image at Real Madrid.
Juventus still see the benefits of a European Super League but acknowledge the planned tournament cannot now go ahead.
Andrea Agnelli still believes in the European Super League but accepted the project can no longer continue as further teams withdrew.
UEFA president Aleksander Ceferin called for unity as plans for a European Super League appeared to collapse.
With the European Super League left in ruins, Barcelona's Gerard Pique broke ranks to criticise the unravelling competition.
A breakaway competition will damage the appeal of domestic leagues even if the 12 teams stay in their divisions, says David Trezeguet.
Andrea Agnelli is organising a tournament to rival the Champions League but still wants Juventus to qualify, Andrea Pirlo says.
Claudio Ranieri told UEFA and FIFA to match words with actions and show the Super League clubs what he sees as the error of their ways.
IOC president Thomas Bach has suggested the proposed European Super League threatens the structure of sport on the continent.