Halep defeats Ostapenko to clinch world No.1

Simona Halep (Front) of Romania celebrates after being presented with a bouquet in the shape of the number '1', after surging to world number one by winning her women's singles semifinal match against Jelena Ostapenko of Latvia at the China Open tennis tournament in Beijing on Oct. 7, 2017. Simona Halep won 2-0 and advanced to the final. (Xinhua/Ju Huanzong)