Zheng Qinwen, top, of China is congratulated by Anca Todoni of Romania following their first round match at the Australian Open tennis championship in Melbourne, Australia.

Zheng Qinwen of China celebrates after defeating Anca Todoni of Romania in their first round match at the Australian Open tennis championship in Melbourne, Australia.

Zheng Qinwen of China plays a forehand return to Anca Todoni of Romania during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Anca Todoni of Romania receives treatment from a trainer during her first round match against Zheng Qinwen of China at the Australian Open tennis championship in Melbourne, Australia.

Anca Todoni of Romania plays a backhand return to Zheng Qinwen of China during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Zheng Qinwen of China plays a backhand return to Anca Todoni of Romania during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Anca Todoni of Romania plays a backhand return to Zheng Qinwen of China during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Anca Todoni, left, of Romania and Zheng Qinwen of China, right, pose for a photo with former Grand Slam champion John Newcombe of Australia ahead of their first round match at the Australian Open tennis championship in Melbourne, Australia.