Top seed Agnieszka Radwanska saw her challenge at the Korea Open ended at the quarter-final stage by Varvara Lepchenko.
Li Na won her second Grand Slam title after beating Dominika Cibulkova in Melbourne. The 2015 Australian Open will take place from 19 January to 1 February. For information visit the official Australian Open site.
The top three seeds at the Toray Pan Pacific Open all progressed safely to the semi-finals on Friday.
Two-time grand slam winner Li Na has announced her retirement from the sport after struggling to overcome knee problems.
Andy Murray will play for Great Britain in the Davis Cup match against the United States - whatever happens in Scotland.
Gael Monfils reached the quarter-finals of the Moselle Open with a comfortable win over Poland's Michal Przysiezny.
Caroline Wozniacki scraped past Jarmila Gajdosova to reach the last eight at the Toray Pan Pacific Open.
Second seed Alice Cornet is through to the semi-finals of the Guangzhou Open after beating Hsieh Su-wei of Chinese Taipei.
Wildcard Maria Kirilenko fought back from a set down to claim the scalp of third seed Klara Koukalova at the Korea Open.
Andy Roddick will return to London to make his debut at the Statoil Masters Tennis at the Royal Albert Hall in December.
Heather Watson was dumped out of the Korea Open in the first round, beaten by American qualifier Nicole Gibbs.