Williams, Wozniacki win at WTA Finals; Halep stays No. 1
By Yong Teck Lim | Saturday, October 28, 2017, 5:59 a.m.
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Caroline Wozniacki of Denmark celebrates after beating Karolina Pliskova of the Czech Republic during their singles semifinal match at the WTA tennis tournament in Singapore, on Saturday, Oct. 28, 2017. (AP Photo/Yong Teck Lim)