Halep cruises; U.S. teen Anisimova's run ends

Simona Halep improved to 17-1 this year after defeating Wang Qiang 7-5, 6-1 in the fourth round of the BNP Paribas Open. American teenager Amanda Anisimova fell to No. 5 seed Karolina Pliskova 6-1, 7-6 (2).