WTA roundup: Iga Swiatek starts strong at WTA Finals
No. 2 seed Iga Swiatek of Poland began her fifth consecutive WTA Finals appearance with a 6-1, 6-2 victory against No. 7 seed Madison Keys on SaturdayNo. 2 seed Iga Swiatek of Poland began her fifth consecutive WTA Finals appearance with a 6-1, 6-2 victory against No. 7 seed Madison Keys on Saturday