The proposed Super League could pose a "fundamental risk" to England's football system, according to a finance expert at Deloitte.
Twelve clubs from England, Spain and Italy announced on Sunday that they plan to join a breakaway competition.
Tim Bridge of Deloitte's Sports Business Group feels there is no going back from the statements, which came on the eve of a vote over a new format for the Champions League.
"So ultimately, I do see the business sense. However, there's some fundamentals that I don't understand and that probably need greater consideration than it appears they've been given.
"The fundamental risk of what this may do to the overall football system is one that I would have hoped is too big to not be considered.
"You could argue that the disparity between a club in the Premier League and League Two is too big – but the reality is that the money a League Two club makes at the moment, a proportion of that comes through the Premier League, through a solidarity mechanism. This potentially changes that.
"It's too early to say whether this is a fundamental negative for English football, and European football. But should those six clubs leave the Premier League, the value of English football suddenly falls because those six clubs do drive so much of that value."
