Serena Williams of the United States hits a return during the women's singles second round match against Carina Witthoeft of Germany at the 2018 US Open tennis Championships in New York, the United States, Aug. 29, 2018. Williams won 2-0. (Xinhua/Wang Ying)
Highlights of singles 2nd round matches at US Open
Source: Xinhua| 2018-08-30 10:31:12|Editor: ZX
