Football Federation Australia chairman Frank Lowy on Wednesday said the race for the 2022 World Cup was "not clean" and he has shared what he knows with authorities.

"We ran a clean bid. I know that others did not, and I have shared what I know with the authorities, including Michael Garcia who undertook a two-year investigation into the 2022 World Cup bid," he said in an open letter.

Australia was vying for the 2022 tournament, which was awarded to Qatar, along with the United States, Japan and South Korea. It secured only one vote.

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