02.01.2017. Shenzen, China.  Peng Shuai of China returns a shot during a match against Katerina Siniakova of the Czech Republic at the first round of women s single at the WTA Tennis Damen Shenzhen Open tennis tournament in Shenzhen, south Chinas  Guangdong Province, on Jan. 2, 2017. Katerina Siniakova won 2-0.