brent: nick connolly reporting there.rn is mounting since it top -ranked chinese tennis player disappeared, after alleging sexual assault by a senior chinese politician. peng shuai alleges she was forced to have six with a member of china's top decision-making committee. she made the allegations two weeks ago on chinese social media. since then, her whereabouts are unclear. reporter: she is one of china's biggest names in sports a former tennis word number one in doubles and a two-time grand champion. he was one of the biggest names in politics, a former member of the communist party's top decision-making body. peng shuai and the married leader had been in and relationship, but peng alleged on social media that he sexually assaulted her three years ago. she wrote that she had no proof, and think like a moth to a flame courting self-destruction, i will tell the truth about you. the post was swiftly removed, and china has moved to shut on the topic. >> i have not heard of it, that this is not a question about diplomacy. >>

michael: many thanks to nick connolly in minsk.he wta says it remains concerned about the welfare of chinese tennis star peng shuai. she disappeared from public view after accusing a senior politician of sexual assault. on sunday, the international olympic committee said peng was safe and well after, a video call with the olympiad. but the wta and women's rights groups remain unconvinced. reporter: this is what china is presenting as proof that she is safe and well. a public appearance, supposedly added tennis tournament in beijing on sunday. the international olympic committee backs up this version of events, after a 30 minute video call with peng. the ioc said she was at home and wanted her privacy to be respted. but rights groups are not convinced. >> the international olympic committee is entering dangerous quarters. they should be extremely careful not to participate in a itewash of possible human rights violations. reporter: what the ioc did not mention is that peng has made sexual assault allegations against a politician. sh