Halep becomes first top-seeded woman to lose in U.S. Open first round

Kaia Kanepi of Estonia hits a return during the Women's Singles first round match against Simona Halep of Romania at the 2018 US Open tennis championships in New York, the United States, Aug. 27, 2018. Kaia Kanepi won 2-0. (Xinhua/Wang Ying)