China's World Number four Li Na and Canada's Eugenie Bouchard on Tuesday stormed into the Women's Singles semi-finals of the Australian Open Tennis tournament at Melbourne.In the quarterfinals, while Li defeated Italy's Flavia Pennetta, 6-2, 6-2, Eugenie beat Ana Ivanovic of Serbia, 5-7, 7-5, 6-2.In the other quarterfinals on Wednesday, World Number Two Victoria Azarenka will clash with Agnieszka Radwanska of Poland, while Romania's Simona Halep will meet Slovakia's Dominica Cibulkova.Meanwhile, in the Women's Doubles, the sixth seeded Indo-Zimbabwean duo of Sania Mirza and Cara Black will take on the top seeded Italian pair of Sara Errani and Roberta Vinci for a place in the semi-finals on Tuesday.In the Mixed Doubles, Leander Paes, Rohan Bopanna and Sania Mirza, with their respective partners, on Monday made it to the quarterfinals.