Olympic hopeful, Andy Roddick completed a straight-sets win over Frenchman Nicolas Mahut at the Atlanta Open on Wednesday. Roddick won over Mahut 7-6 and 6-3 in the second round. In the quarterfinals, Roddick will play Michael Russell who triumphed South African and 5th seeded, Kevin Anderson 6-7, 6-4 and 6-4. Top seeded, John Isner and number two, Mardy Fish will play their second-round matches at the Atlanta Open on Thursday. Isner has reached the last two finals in Atlanta, losing both to Fish.