World No. 1 men's tennis player Roger Federer of Switzerland has easily reached the third round of the U.S. Open tournament in Flushing Meadows, New York.
Federer, the top seed and a two-time defending champion, ousted Britain's Tim Henman in straight sets, 6-3, 6-4, 7-5. The Swiss player has won 57 of his last 58 matches on North American hard courts.
Elsewhere in men's play, Russia's Nikolay Davydenko, the seventh seed, advanced when Nicolas Mahut of France retired after losing the first set (6-0).
Also, 10th-seeded Fernando Gonzalez of Chile beat Jan Hajek of the Czech Republic 6-4, 6-4, 6-2. Number-14 seed Tommy Haas of Germany beat Dutchman Raemon Sluiter 6-4, 6-2, 6-3.
In women's third-round play, Justine Henin-Hardenne of Belgium, the 2003 champion overcame a first-set loss to beat Ai Sugiyama of Japan in three sets 4-6, 6-1, 6-0.
Russian Svetlana Kuznetsova, the 2004 winner, beat compatriot Anastassia Rodionova in straight sets 6-3, 6-0. Serbian Jelena Jankovic overcame a first-set loss to oust ninth-seeded Nicole Vaidisova of the Czech Republic 5-7, 6-3, 6-2.