Luis Figo has called on "everyone" in football to oppose a potential European Premier League, saying the competition would "destroy football as we know it".
A Sky News report on Tuesday claimed Liverpool and Manchester United were among clubs in England, France, Germany, Italy and Spain to hold talks over a breakaway competition.
Wall Street bank JP Morgan is said to have prepared a $6 billion (£4.6bn/€5.1bn) funding package, while FIFA was reported to have given its support to the proposals.