FIFA vice-president Jack Warner has warned that a "football tsunami" will hit the world governing body over the next few days.
President Sepp Blatter will appear at a FIFA ethics committee hearing tomorrow to answer a complaint by his rival for FIFA president Mohamed Bin Hammam, who faces a separate charge of bribery along with Warner.
The presidents of CONCACAF and AFC, the regional governing bodies for North America and the Caribbean and Asia respectively, have both denied the corruption allegations made by fellow executive committee member Chuck Blazer.
Blazer claims that the violations of FIFA's code of ethics occurred during a meeting organised by Bin Hammam and Warner for Caribbean Football Union (CFU) associations in Trinidad two weeks ago.
Bin Hammam made a complaint on Thursday that Blatter knew about the alleged cash payments in the Caribbean and under their code, the ethics committee had to summon Blatter to answer that charge.
Judgement on the three most powerful men in football will be passed tomorrow and Warner believes FIFA is about to be rocked to the core.
"I tell you something, in the next couple days you will see a football tsunami that will hit FIFA and the world that will shock you," he told reporters in Port of Spain.
"The time has come when I must stop playing dead so you'll see it, it's coming, trust me. You'll see it by now and Monday.
"I have been here for 29 consecutive years and if the worst happens, the worst happens."
Warner insisted he is not guilty of a "single iota of wrongdoing".
Asked whether he would be prepared to walk away from FIFA, he retorted: "If that is what it comes to, so be it, you must never get too attached to anything.
"It clouds your judgment and therefore whatever happens, happens, que sera sera. I am not even remotely bothered.
"I had planned to leave Saturday morning in any case because I have meetings on Sunday afternoon.
"They can do what they want, it doesn't bother me".
Warner and Bin Hammam face lengthy bans should Blazer's allegations be proven tomorrow.
And Warner believes Blazer, the CONCACAF general secretary, is still upset over the United States' failed bid to host for the 2022 World Cup.
"There has been some resentment still and the feeling is that I should not be talking to [Bin Hammam] or his friends," he said.
"I voted for the US like Mr Blazer and I, like Mr Blazer, was devastated over the fact that the US lost.
"But I will not allow that to impugn Mr Bin Hammam's character or to destroy our friendship. I am not that kind of person and if Mr Blazer and they want to do that, let them go ahead."
He added: "I have been in FIFA for 29 consecutive years, I was the first black man to have ever been in FIFA at this level.
"I have come from the smallest country ever to be on the FIFA executive committee. There is no country smaller than Trinidad and Tobago on FIFA's executive committee.
"I am wielding more power in FIFA now than sometimes even the president, I must be the envy of others.
"In terms of football history my country does not even have one and therefore there are people out there who would ask why should I be there and what is my role.
"So I become the butt of all kinds of attacks and I accept this without any kind of anger because I understand people, this is the nature of human beings."