keywords: federer agassi sargis walkover andre
text: Federer next for Agassi SIXTH seed Andre Agassi defeated Armenia #39;s Sargis Sargsian 6-3 6-2 6-2 in the fourth round of the US Open today. Agassi advances to the quarter-finals to face well-rested top seed Roger Federer, of Switzerland, who won today in a walkover.