Live: 2014 Australian Open - Day Five 9:48am: Thursday saw the end of the Australian men's challenge with the fall of the "Special Ks," Nick Kyrgios and Thanasi Kokkinakis, but Samantha Stosur and Casey Dellacqua will be flying the flag on court in the women's. Stosur will play former world No.1 Ana Ivanovic, the 14th seed, tonight on Rod Laver Arena. Dellacqua would fancy having a chance chance of proceeding to the fourth round against China's unseeded Zheng Jie, who is a dual grand-slam semi-finalist ranked 56 in the world, this afternoon, also on Rod Laver. World No.1 and tournament favourite Serena Williams will be first up on centre court against Daniela Hantuchova, while the world No.3 David Ferrer continues on his understated way taking on James Chardy. Defending champion Novak Djokovic will play world No.49 Denis Istomin tonight. Poll: Should Australian Open organisers have implemented the extreme heat policy earlier than Thursday afternoon? Total votes: 1431. Vote now: Vote: Ashes second Test 2013