The chairman of the Women's Tennis Association Steve Simon has claimed that he is yet to be assured of Peng Shuai's safety.
The 35-year-old accused former China vice-premier Zhang Gaoli of forcing her into a sexual relationship on November 3 and has not been heard from since.
The Chinese Tennis Association are understood to have informed the WTA that Shuai is safe in Beijing, but Simon remains "very concerned" about the former world number one and is not afraid to pull events out of China.
Speaking to BBC Sport, Simon said: "We cannot stand by compromises. This is a right and wrong issue. I'm very, very concerned about her.
"I'm very concerned about the challenges that come when somebody has the courage to step up and speak out, bringing a past experience that is tied to sexual assault or harassment.
"It takes an awful lot of courage just to get to that point - and now she's dealing with more pressures if she is hearing what is going on. It is critical to us that we are able to make sure she knows we are worried about her and that we're prepared to offer any level of support that she needs.
"This is not about the money, this is about doing what is right and making sure Peng Shuai is safe and free. The sad part about this is that we have some tremendous partners and some tremendous friendships in China.
"We don't want to be in this position, but at the end of the day this is one of those decisions where compromises are not acceptable. We have to do what is right here and we will figure that out if we end up being in that position at the end of the day."
Players such as Serena Williams, Simona Halep, Novak Djokovic and Andy Murray have all expressed similar concerns over Shuai's safety in recent days.
Ben Knapton
