Leander Paes and his Slovakian partner Daniela Hantuchova have advanced to the quarterfinals of the mixed doubles at the Australian Open Tennis championships. In Melbourne today, the unseeded pair scored an upset victory over eighth seeds Mahesh Bhupathi and Elena Vesnina of Russia in three sets 6-0 2-6 10-6. Sania Mirza had a successful day today as she reached the quarter-finals in her two events. In the women's doubles Sania and her Zimbabwean partner Cara Black beat the pair of Eugenie Bouchard of Canada and Russia's Vera Dushevina 6-4 6-3. The Indian then joined hands with her Romanian partner Horia Tecau to outplay Anastasia Rodionova of Australia and Britain's Colin Fleming 6-2 6-2 in mixed doubles pre-quarterfinal match. Another Indian, Rohan Bopanna and his partner Katarina Srebotnik of Slovenia also entered the quarterfinals of the mixed doubles event. The combination posted a 7-6 7-5 win over Australian duo of Ashleigh Barty and John Peers.