Are Sun Tiantian and Gene Mayer both tennis players?
Sun Tiantian Sun Tiantian (; ; born 12 October 1981) is a Chinese former professional tennis player.
Zheng Jie Zheng Jie (born 5 July 1983) is a Chinese professional tennis player. Her career-high singles ranking is World No. 15 which she achieved on 18 May 2009.