Fifa presidential candidate Mohamed bin Hammam has denied bribery allegations made against him by Fifa executive committee member Chuck Blazer.
The American claims Fifa’s ethics code was violated at a meeting “organised” by Bin Hammam and Jack Warner.
Four officials, including Bin Hammam and Fifa vice-president Warner, face a Fifa ethics hearing on May 29, ahead of the presidential vote.
Bin Hammam said he is “confident that there is no charge to answer”.
The Press Association news agency says a file has been sent to Fifa which includes sworn affidavits by several Caribbean Football Union (CFU) members, who claim they were offered thousands of dollars in cash for “development projects” at the meeting earlier this month.
The file, which includes photographs, says some of the cash was accepted, but some of those who refused to take any money approached Blazer.
The Caribbean meeting, on 10 and 11 May, was in relation to the Fifa presidential election which takes place on 1 June.
The other two officials to face the hearing are Debbie Minguell and Jason Sylvester from the CFU, which represents 25 Fifa member nations as well as five territories not affiliated to Fifa.
Bin Hammam – the 62-year-old president of the Asian Football Confederation – is running against current Fifa president Sepp Blatter to be the new head of football’s world governing body.
Bin Hammam released a statement on his website, which continued: “This has been a difficult and painful day for me today.
“But, if there is even the slightest justice in the world, these allegations will vanish in the wind. This move is little more than a tactic being used by those who have no confidence in their own ability to emerge successfully from the Fifa presidential election.
“I remain deeply indebted to Mr Warner for his sense of fair play because without his support and understanding I would not have been able to meet with several important member associations of Fifa to discuss my election manifesto.
“Here I completely deny any allegations of wrongdoing either intentionally or unknowingly while I was in the Caribbean.
“I will offer Mr Warner my full support in ensuring we are discharged honourably by the Fifa ethics committee, a body which I hold in the highest esteem.
“I am confident that there is no charge to answer and that I will be free to stand in the Fifa presidential election on 1 June as originally planned.”
Fifa has announced that Claudio Sulser, the head of the ethics committee, will not take charge of the hearing as he shares Swiss nationality with Bin Hammam’s presidential rival Blatter. (BBC)