India's Leander Peas and Switzerland's Martina Hingis will clash with Costina Mednovik of France and Daniel Nester of Canada today in the mixed doubles final of the Australian Open Tennis. In the men's singles, World's number one Serbian Novak Djokovic will take on Britain's Andy Murray.World's number one Serena Williams yesterday lifted the women's singles title of Australian Open for the sixth time. Serena defeated second seeded Russian Maria Sharapova in a final by 6-3, 7-6. This is Serena's 19th Grand Slam title.