
Jelena Jankovic of Serbia serves to Angelique Kerber of Germany during their final match at the WTA Hong Kong Open tennis tournament in Hong Kong, Oct. 18, 2015. Jelena Jankovic won 2-1 and claimed the title. (Xinhua/Lo Ping Fai)

Jelena Jankovic of Serbia serves to Angelique Kerber of Germany during their final match at the WTA Hong Kong Open tennis tournament in Hong Kong, Oct. 18, 2015. Jelena Jankovic won 2-1 and claimed the title. (Xinhua/Lo Ping Fai)