Swiss star Roger Federer has bowed out of the Australian Open Tennis championships. In the semi-final in Melbourne on Thursday, Serbian third seed Novak Djokovic sensationally knocked out Federer in straight sets 7-6, 7-5, 6-4. The defeat has left the defending champion without a Grand Slam title for the first time in eight years.The second men's singles semi-final between Andy Murray and David Ferrer is slated for Friday. Earlier on Thursday, China's Li Na made history by becoming the first Asian woman to reach a major final. In her women's singles semi-final, she defeated top-ranked Caroline Wozniacki in three sets 3-6, 7-5, 6-3. In the final on Saturday, Li will meet Kim Clijsters who beat second-ranked Vera Zvonareva 6-3, 6-3. In the Men's Doubles, Indian veterans Leander Paes and Mahesh Bhupathi have entered the final. In their semi-final, the reunited duo defeated the combination of Max Mirnyi and Daniel Nestor 7-6, 4-6, 6-3. The Indian duo now have a chance to complete their career Grand Slam titles by winning the elusive Australian Open trophy.In the final, the Indian-Express, as they are known, will clash with America's two-time defending champions Mike and Bob Bryan. In their semi-final, the American duo overcame the unseeded pair of Eric Butorac and Jean-Julien Rojer in straight sets 6-3, 6-2 in 54 minutes. The Bryan brothers are unbeaten at Melbourne Park in their last 17 outings.