Nov. 19 (UPI) -- The Women's Tennis Association says it's planning to cut ties with China if it doesn't respond adequately to the disappearance of Chinese star Peng Shuai after she made accusations of sexual assault against Beijing's former vice premier. Peng, a former world's No. 1 doubles player, has not been seen in public since she made the accusations against former Vice Premier Zhang Gaoli on Chinese social media platform Weibo on Nov. 2. "I have repeatedly tried to reach her via numerous forms of communication, to no avail," Steve Simon, executive director of the Women's Tennis Association, said...