In the season's first Grand Slam, Australian Open, the competition is progressing towards the semifinal stages.In men's singles event yesterday, Czech's Tomas Berdych and Briton Andy Murray secured semifinal spot. Today, for the other remaining semifinal positions, world number one Novak Djokovic will play against Canadian Milos Ranoic and defending champion Stanislas Wawrinka will be taking on Japan's Kei Nishikori.In the women's singles event yesterday, Russians, Maria Sharapova and Ekaterina Makarova progressed to the semi-finals. Today, top seed Serena Williams will be taking on Dominika Ciblukova from Slovakia for the semifinal position. In other quarterfinals, Venus Williams of US will be taking on her compatriot Madison Keys.In the Mixed Doubles India's Sania Mirza and Leander Paes, with their teammates, will also look to book semi-final berths today.