The fifth-seeded Roddick was ousted 6-4, 6-7 (3), 6-7 (4), 7-6 (5), 9-7 by Yen-hsun Lu on Monday in a match that lasted over 4½ hours.
Lu sealed the victory in the 16th game of the fifth set with his only service break of the match.
Story continues below ↓advertisement | your ad hereThe 26-year-old Lu had lost in the first round at Wimbledon four straight times and failed to win a match in his last five Grand Slams.
He’s the first Asian man to reach the quarterfinals of any Grand Slam since Shuzo Matsuoka of Japan did it at Wimbledon in 1995.
Roddick had 38 aces but converted only one of eight break-point chances.
Roger Federer reached the quarterfinals at a 25th consecutive Grand Slam tournament by easily beating Jurgen Melzer.
The top-seeded Federer, seeking his record-tying seventh championship at the All England Club, swept past No. 16 Melzer 6-3, 6-2, 6-3 in Monday’s first match on Centre Court.
The top-seeded Federer was broken once but lost only 15 of 63 points on serve.
“I thought I played great,” he said. “Aggressive right from the start.”
Melzer was playing in Wimbledon’s fourth round for the first time, but he did reach the semifinals at this month’s French Open. Federer did not make it that far in Paris: He lost in the quarterfinals there to Robin Soderling, ending a streak of reaching the semifinals at a record 23 major tournaments in a row.
Federer’s win over Melzer makes him 80-2 on grass since 2003. He’s played in the Wimbledon final seven years in a row.
Later in the day, top-ranked Rafael Nadal beat Paul-Henri Mathieu 6-4, 6-2, 6-2 in 2 hours.
Also, third-seeded Novak Djokovic beat former champion Lleyton Hewitt 7-5, 6-4, 3-6, 6-4, and Britain's hopes stayed alive as No. 4 Andy Murray swept No. 18 Sam Querrey 7-5, 6-3, 6-4.
Djokovic, who also eliminated Hewitt in the fourth round in 2007, needed just a single break of serve to win each of the first two sets.
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