By Shrivathsa Sridhar MELBOURNE (Reuters) -Last year's runner-up Zheng Qinwen was sent crashing out of the Australian Open second round on Wednesday as her bid to emulate Chinese compatriot Li Na's 2014 triumph evaporated after a shock 7-6(3) 6-3 defeat by unseeded German Laura Siegemund.

Zheng Qinwen is out of the Australian Open after a shock defeat to Germany’s Laura Siegemund. Zheng, the No. 5 seed and last year’s beaten finalist, lost 7-6(3), 6-3 after her serve unraveled in the fourth game of the second set.

MELBOURNE -- Chinese tennis star Zheng Qinwen crashed out of the Australian Open after being knocked out in straight sets by an aggressive Laura Siegemund of Germany in the second round on Wednesday.