There's mounting concern for the welfare of the Chinese tennis player, Peng Shuai - who hasn't been seen in public since she made sexual assault allegations against a top government official.
State media has now released an email it claims she sent to the head of the Women's Tennis Association, saying she is safe but the WTA has expressed scepticism about whether it's really from her and has called for verifiable proof.
Corin Dann spoke to China Director of the Human Rights Watch organisation in New York, Sophie Richardson.
