In a separate clip also circulating online, Hao appears with his wife Ye Zhaoying, a badminton star in the 1990s, saying she had supported him to “come forth and speak the truth”.

Guo is seen in another video with Bannon, who reads out what appears to be an English version of Hao’s “proclamation”.

None of the video clips give a clear explanation of the relationship between Bannon, Guo and Hao.

Guo – who is accused of financial crimes by the Chinese government and apparently lives in New York – is known for making allegations about corruption in China, though they have been largely unsubstantiated.

He also alleged there was widespread corruption in China, especially in sport – including football.

Former striker Hao was a national football star in the 1990s and 2000s and holds the record as China’s top goal scorer of all time.

He is also known for being outspoken – in April, Hao accused Evergrande Group chairman Xu Jiayin of “treating players like tools”. Evergrande is China’s second-largest property developer by sales, and the sponsor of a football club in Guangzhou.

Attempts to contact Hao and to verify his whereabouts on Thursday were not successful.

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There was no official response from Beijing, but state-run newspaper Titan Sports slammed him in a statement on its official Weibo account, calling Hao’s comments “irresponsible”.

“This morning, former Chinese footballer H published open, subversive and detrimental materials against the Chinese government and our nation’s sovereignty, and took advantage of the coronavirus pandemic to smear the Chinese government,” the newspaper said, referring to the footballer using only the first letter of his surname.

“We denounce such acts … and there should not be politicisation of sports,” it said. “Sports stars should stand firm … and not be manipulated by political forces who have ulterior motives.”