The former double benefactor, Peng Shuai, disappeared after she accused former Deputy Prime Minister Zhang Gaoli on November 2 of forcing her to have sex.
Shuai has not been reached but must, in an email to WTA's CEO Steve Simon, have denied that she has disappeared.
But Simon was worried that she had not written the email herself.
One and a half weeks ago, Simon also had a meeting with the International Olympic Committee (IOC) where she claimed that she was fine, but that too has been questioned.
Now the WTA is acting by canceling all tournaments in China.
- I think that is completely right.
I stand one hundred percent behind it.
I think humanity should come first and then tennis comes after that.
They do the right thing that stands up for her.
That situation is completely crazy and really needs to have serious consequences, says Rebecca Peterson.
What do you want to see for China to be able to host competitions again?
- First and foremost, you have to know where she is.
WTA has got something, which they can not really confirm whether it is genuine or not.
First you have to know if she is well, then you have to take it from there.
In a few months, another major sporting event, the Winter Olympics, will be decided in Beijing. What do you think about it?
- I really think the same thing there.
You have to stand up for all people and in this case it is about athletes who come from different countries.
It is a tough situation that will have consequences.
Should I interpret this as meaning that you do not think that sporting events should be organized in China?
- I think that on the whole it is about humanity itself.
It's a human being, whether he's an athlete or not.
Peterson says that the players on the tour are behind Shuai.
The Swede has played in the same tournaments as the Chinese.
- We are many players who stand behind her.
I really hope she can come forward and know that she's fine.
You see her as a work colleague, she has played for many years with the rest of us.
You know very well who she is.