Australian Open: Last year’s finalist Zheng Qinwen stunned in biggest upset so far

Zheng Qinwen, last year’s beaten Australian Open finalist, became the highest seed to fall so far in this year’s tournament after she was stunned by world No. 97 Laura Siegemund in the second round.

​ Zheng Qinwen, last year’s beaten Australian Open finalist, became the highest seed to fall so far in this year’s tournament after she was stunned by world No. 97 Laura Siegemund in the second round. Read More Breaking News, Latest News and Videos | CNN