Li Na of China plays a shot to Andrea Petkovic of Germany during the women's quarter-final match at the Australian Open tennis tournament in Melbourne Jan 25, 2011. Eleventh seed Li Na is on fire to battle her way to become the first Chinese player to reach a Grand Slam final, as she kicked out World No.1 Caroline Wozniacki 6-3 5-7 3-6 in Thursday's quarter final of Australian Open. [Photo/Xinhua]