Klara Zakopalova of the Czech Republic makes a backhand return to Samantha Stosur of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Eugene Hoshiko)
Samntha Stosur of Australia makes a forehand return to Klara Zakopalova of the Czech Republic during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Eugene Hoshiko)
Venus Williams of the U.S. reacts during her first round match against Ekaterina Makarova of Russia at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Andrew Brownbill)
Ekaterina Makarova of Russia reacts during her first round match against Venus Williams of the U.S. at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Andrew Brownbill)
Venus Williams of the U.S. reacts during her first round match against Ekaterina Makarova of Russia at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Andrew Brownbill)
Venus Williams of the U.S. makes a backhand return to Ekaterina Makarova of Russia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Andrew Brownbill)
Ana Konjuh of Croatia makes a backhand return to Li Na of China during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Rick Rycroft)
Li Na of China makes a forehand return to Ana Konjuh of Croatia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Rick Rycroft)