LONDON, June 30: A new name will be engraved on the Wimbledon men’s singles trophy this year after Andre Agassi, the last former champion in the draw, suffered a shattering five-set defeat by Australian Mark Philippoussis on Monday.

Unseeded Philippoussis unleashed an astonishing 46 aces, equalling the all-time Wimbledon record for a single match, to beat the second seed 6-3, 2-6, 6-7, 6-3, 6-4 in a fourth-round epic on court one.

The Australian’s victory ruined an otherwise superb day for the Americans. Andy Roddick sealed his quarterfinal place and the four leading American women, Serena and Venus Williams, Lindsay Davenport and Jennifer Capriati all swept through to the last eight after a rain-delayed start to the day.

Russia suffered as four of their five women lost, including shrieking 16-year-old wild card Maria Sharapova, but Belgian duo Justine Henin-Hardenne and Kim Clijsters moved through to the quarter-finals as expected.

Philippoussis, ranked 48, equalled Goran Ivansevic’s 1997 record of 46 aces in a single match at the All-England Club to leave 33-year-old Agassi forlorn and exhausted after the best match so far of the men’s draw.

The win ended a run of six straight defeats by Agassi and avenged his 2000 Wimbledon quarter-final defeat by the 1992 champion and current world number one.

Agassi’s defeat followed the shock first-round exit of defending champion Lleyton Hewitt in the first round. It means there is no previous winner in the men’s quarterfinals for the first time since 1973.

Philippoussis next plays German Alexander Popp, a quarterfinalist at Wimbledon three years ago, who made the most of his 14-inch (35cm) height advantage over Belgium’s Olivier Rochus to win 5-7, 6-3, 6-4, 6-2.

Roddick convincingly saw off 12th-seed Thai Paradorn Srichaphan 6-4, 3-6, 6-3, 6-2, although he was made to fight by the Thai.

The 20-year-old American, seeking his first Grand Slam title, faces an unseeded player in the last eight in Sweden’s Jonas Bjorkman, who beat Belarussian Max Mirnyi 6-4, 3-6, 6-3, 7-6.

Roddick is still on course for a much-anticipated semifinal meeting with talented Swiss fourth seed Roger Federer, who beat Feliciano Lopez 7-6, 6-4, 6-4 despite play through back pain after injuring himself warming up.

Federer’s quarterfinal opponent, assuming he is fit, is Dutch eighth seed Sjeng Schalken, who ousted Australian Open runner-up Rainer Schuettler of Germany 7-5, 6-4, 7-5.

The other expected highlight on a manic Monday, when all 16 fourth-round singles matches were scheduled, is home favourite Tim Henman’s meeting with last year’s runner-up, Argentine David Nalbandian.

The six favourites for the women’s crown — the American quartet plus Henin-Hardenne and Clijsters — again had an easy time of it.

Not one of them has dropped a set in the tournament so far.

Serena out-clubbed Russian Elena Dementieva 6-2, 6-2 on Centre Court and will next face Capriati, seeded eighth, after she demolished Anastasia Myskina 6-2, 6-3.

“We Americans are doing pretty good now,” said Serena.

Capriati is the last player to have beaten Serena at Wimbledon. She won their epic 2001 quarterfinal in three sets.

Fourth seed Venus, the 2000 and 2001 Wimbledon champion, avenged her French Open defeat by Russian Vera Zvonareva 6-1, 6-3 to set up another all-American quarterfinal against fifth seed Lindsay Davenport.

Davenport brushed past Japan’s Shinobu Asagoe, winning 6-4, 6-1.

French Open champion Henin, barely hindered by her painful hand injury, outclassed Frenchwoman Mary Pierce 6-3, 6-3 to set up a quarterfinal with Wimbledon debutant Svetlana Kuznetsova of Russia. Kuznetsova defeated Sharapova 6-1, 2-6, 7-5.

Confident Clijsters, the second seed, humbled her doubles partner Ai Sugiyama of Japan 6-3, 6-2.

It was Clijsters’ 50th singles win of the year. Not since Martina Navratilova in 1982 has a woman player reached her half-century so early in the season.

The French Open runner-up has now dropped only 12 games in four matches. Italy’s Silvia Farina Elia awaits the Belgian in the last eight after her 7-5, 7-6 win over Paola Suarez of Argentina.

Monday’s results (prefix number denotes seeding):

Men’s singles:

Fourth round: 8-Sjeng Schalken (Netherlands) beat 9-Rainer Schuettler (Germany) 7-5, 6-4, 7-5; Mark Philippoussis (Australia) beat 2-Andre Agassi (US) 6-3, 2-6, 6-7 (4-7), 6-3, 6-4; 4-Roger Federer (Switzerland) beat Feliciano Lopez (Spain) 7-6 (7-5), 6-4, 6-4; Jonas Bjorkman (Sweden) beat Max Mirnyi (Belarus) 6-4, 3-6, 6-3, 7-6 (7-4); 5-Andy Roddick (US) beat 12-Paradorn Srichaphan (Thailand) 6-4, 3-6, 6-3, 6-2; Alexander Popp (Germany) beat Olivier Rochus (Belgium) 5-7, 6-3, 6-4, 6-2.

Women’s singles:

Fourth round: 33-Svetlana Kuznetsova (Russia) beat Maria Sharapova (Russia) 6-1, 2-6, 7-5; 27-Silvia Farina Elia (Italy) beat Paola Suarez (Argentina) 7-5, 7-6 (7-3); 3-Justine Henin-Hardenne (Belgium) beat Mary Pierce (France) 6-3, 6-3; 8-Jennifer Capriati (US) beat 10-Anastasia Myskina (Russia) 6-2, 6-3; 4-Venus Williams (US) beat 16-Vera Zvonareva (Russia) 6-1, 6-3; 5-Lindsay Davenport (US) beat Shinobu Asagoe (Japan) 6-4, 6-1; 1-Serena Williams (US) beat 15-Elena Dementieva (Russia) 6-2, 6-2; 2-Kim Clijsters (Belgium) beat 13-Ai Sugiyama (Japan) 6-3, 6-2.—Reuters