WTA Finals official draw ceremony held in Singapore

(171020) -- SINGAPORE, Oct. 20, 2017 (Xinhua) --Spain's Garbine Muguruza, Ukraine's Elina Svitolina, Denmark's Caroline Wozniacki and France's Caroline Garcia (From L to R) attend the WTA Finals official draw ceremony held in Singapore on Oct. 20, 2017.(Xinhua/Then Chih Wey)