
Jelena Jankovic of Serbia hits a return 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 hits a return 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)