The Indian duo of Mahesh Bhupathi and Rohan Bopanna and the Indo-Czech pair of Leander Paes and Radek Stepanek have stormed into the Doubles quarterfinals of the ATP Shanghai Masters Tennis tournament. In the pre-quarterfinals yesterday, while Bhupathi and Bopanna defeated Briton Jonathan Marray and his partner from Philippines, Treat Conrad Huey, 7-6, 6-4; Paes and Stepanek beat the South African-American combination of Kevin Anderson and Sam Querrey, 6-4, 6-4. They will play their quarterfinal matches today.Meanwhile, in the Singles section, World Number One Roger Federer of Switzerland, Serbia's Novak Djokovic and Briton's Andy Murray advanced into the quarterfinals yesterday. They will play for a semi-final berth today.