The Indo-American duo of Sania Mirza and Bethanie Mattek Sands will begin its Qatar Open Tennis campaign in Doha today. The eighth seeded Indo-American duo will take on the Aussie-American combination of Samantha Stosur and Lisa Raymond in the Doubles opening round today.Meanwhile, America's World Number Two Serena Williams, World Number three Maria Sharapova of Russia and fifth seed Angelique Kerber of Germany will also be seen in action in the Singles category today.