sentences:  Andy Roddick was leading when a second opponent, Tomáš Berdych, retired on him in a week.Roger Federer lost the first set but ultimately had a comfortable victory and Nikolay Davydenko progressed, still the only player on the men's side not to drop a set.In men's doubles, the top seeded Bryan brothers were upset by tenth-seeded Simon Aspelin and Julian Knowle 7–5, 6–4.