Saina Nehwal and K Srikanth have entered the semi finals of the Australian Super Series Badminton. Saina beat Thailand's Ratchanok Intanon, 28-26, 21-16 in the women's singles quarterfinal at Sydney today. In men's singles Kidambi Srikanth beats Kwang Hee Heo in quarterfinals 21-18, 21-17. The Guntur lad will next take on Denmark's Hans-Kristian Vittinghus tomorrow. Saina will face the winner of the other quarterfinal between Wang Yihan and Tai Tzu Ying.