Roger Federer reached the quarterfinals at a 30th consecutive Grand Slam tournament by making quick work of the 36th-ranked Juan Monaco 6-1, 6-2, 6-0 at the U.S. Open.
Federer's fourth-round match against Monaco didn't get started until nearly midnight, and thanks to his superb play, it was over shortly before 1:15 a.m. on Tuesday. (Also see: Biggest moments of Day 8)
Federer played brilliantly right from the start, taking the first five games - and 20 of the first 25 points - in only 12 minutes. He didn't miss a beat in the second set, hitting four aces in his opening service game and finishing with 14.
Five of Federer's record 16 major championships have come at Flushing Meadows. In the quarterfinals, Federer will face 11th-seeded Jo-Wilfried Tsonga of France, who eliminated No. 8 Mardy Fish of the United States in five sets Monday.
Tsonga upset Federer in the Wimbledon quarterfinals two months ago, coming all the way back after dropping the first two sets.
"He's a tough player. ... I look forward to that match," Federer said. "If I play as good as I did today, sure I have a chance."
Federer compiled a 42-4 edge in winners against Monaco.
The start of their match was delayed because the preceding match in Arthur Ashe Stadium - No. 1 Caroline Wozniacki's 6-7 (6), 7-5, 6-1 victory over No. 15 Svetlana Kuznetsova - lasted 3 hours, 2 minutes. "You have to be ready," Federer said.