Are Sun Tiantian and Gene Mayer both tennis players?
Sun Tiantian Sun Tiantian (; ; born 12 October 1981) is a Chinese former professional tennis player.
Tianjin Open The Tianjin Open is an International-level WTA tennis event held at the Tianjin International Tennis Center. The venue has a center court that seats 3,500 people, as well as 12 outdoor courts with lights, four indoor courts and a tennis club.