US OPEN - DAY 8

MEN'S SINGLES 4TH ROUND

Roger Federer beats Tommy Robredo 7-5, 6-2, 6-2.

Novak Djokovic beats Radek Stepanek 6-1, 6-3, 6-3.

Robin Soderling beats Nikolay Davydenko 7-5, 3-6, 6-2 (retired).

Fernando Verdasco beats John Isner 4-6, 6-4, 6-4, 6-4.

WOMEN'S SINGLES 4TH ROUND

Kateryna Bondarenko beats Gisela Dulko 6-0, 6-0.
Melanie Oudin beats Nadia Petrova 1-6, 7-6, 6-3.
Caroline Wozniacki beats Svetlana Kuznetsova 2-6, 7-6, 7-6.
Yanina Wickmayer beats Petra Kvitova 4-6, 6-4, 7-5.