Former world No.1 tennis doubles player Peng Shuai, one of China's biggest sporting stars, has publicly accused a former Chinese vice premier of forcing her into sex several years ago in a social media post that was later deleted.

According to a screenshot of her verified Weibo account late on Tuesday, Peng said that Zhang Gaoli, who became a member of the Politburo Standing Committee - China's top decision-making body - coerced her into sex and they later had an on-off consensual relationship.

The post was deleted around half an hour after...