Top seeded Women's Doubles pair of Sania Mirza and Martina Hingis has advanced to the quarterfinals of the Australian Open Tennis. The Indo-Swiss pair beat Russian – Italian pair of Svetlana Kuznetsova and Roberta Vinci by 6-1, 6-3 in straight sets. India's Rohan Bopanna and Yung-Jan Chan of Chinese Taipei have also advanced to the quarterfinals of the Australian Open. They edged out Czech Andrea Hlavackova and Lukasz Kubot of Poland 4-6 6-3 (10-6) in a mixed doubles match. Two-time champion Victoria Azarenka today defeated Czech Republic's Barbora Strycova to surge into an Australian Open quarter-final of Women's Singles. She will face seventh seed Angelique Kerber in the quarter-final. Meanwhile, in Men's Singles, the 4th Round match between Swiss player Stan Wawrinka and Canadian Milos Raonic is underway. In another Men's Singles fixtures today, Spaniard David Ferrer will take on American John Isner while Scottish Andy Murray will face Bernard Tomic of Australia. World number one Serbian Novak Djokovic and world number three Swiss player Roger Federer have already entered the Men's Singles quarter-finals.