INDIAN WELLS (AFP) - Australian Open champion Li Na booked a semi-final berth at the Indian Wells hardcourt tennis tournament with a 6-3, 4-6, 6-3 win over Dominika Cibulkova.

China's Li, the world number two who is the top seed in the event, reprised her triumph over Slovakia's Cibulkova in the final in Melbourne.

Li will face the winner of Thursday's quarter-final clash between rising US talent Sloane Stephens and Italian veteran Flavia Pennetta.

The other women's semi-final between second-seeded Agnieszka Radwanska and Romanian Simona Halep was set on Wednesday.