Suspended Fifa vice-president Jack Warner has made public an e-mail that claims Mohamed Bin Hammam "bought" the 2022 World Cup finals for Qatar.
Fifa secretary general Jerome Valcke admitted he sent the e-mail, which also questioned why Asian football boss Bin Hammam was running for Fifa president.
Valcke wrote: "[Hammam] thought you can buy Fifa as they bought the World Cup."
The Qatar 2022 World Cup bid team has issued a statement "categorically denying any wrong-doing" over the bid.
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