US Open: Wins for Davydenko, Roddick, Clijsters

Introduction:Zheng, got by Timea Bacsinszky of Switzerland 7-6, 7-6 in her opener. Over on the men's side, the top seeded player in action on August 30, was Robin Soderling...the fifth seed. He is through to round two, and will be joined by the 6th seed Nikolay Davydenko.