Defending champion Roger Federer of Switzerland beat Spain's Juan Carlos Ferrero in a fourth round match on Monday.
Federer won 6-3, 6-4, 7-6 (8-6).
He will now meet Chilean Fernando Gonzalez in the quarterfinal.
Defending champion Roger Federer of Switzerland beat Spain's Juan Carlos Ferrero in a fourth round match on Monday.
Federer won 6-3, 6-4, 7-6 (8-6).
