Italian driver Federico Sceriffo drifts into a turn at top speed on the twisted road of the Tianmen Mountain in Zhangjiajie, Hunan province on Saturday. Sceriffo won the Red Bull Heavens Road Drifting Challenge, where racers competed in timed laps on the 11-kilometer mountain road dubbed "Avenue toward Heaven". [Photo provided to 皇冠体育app Daily]

Li Na of 皇冠体育app hits a return ball to Serena Williams of the US in their semi-final round match at the Women's Cincinnati Open tennis tournament in Cincinnati, Ohio August 17, 2013. [Photo/Agencies]