Hingis, who is coming off a tumultuous French Open loss to Steffi Graf and is going through personal turmoil with her mother, also her coach, said after the upset that she planned to take a break from tennis.

``Maybe I just a need a break from everything right now,'' Hingis said. ``A break would really suit me.''

The stunning loss coincided with victory for defending champion Jana Novotna, who charged and volleyed her way to a 6-2, 6-1 victory over Taiwan's Wang Shi-Ting.

``It was a very nice start. It was very special again,'' Novotna said.

In men's action, French Open champion and fourth seed Andre Agassi cruised to a straight sets victory over Romanian Andrei Pavel at Center Court. Pavel, ranked 52nd, broke Agassi in the eighth game of the third set and raised his arms in a light-hearted salute. He fell 6-1, 6-2, 6-3.

Second-seed Pat Rafter beat Cristiano Caratti of Italy 6-3, 6-2, 6-2, while 11th-seed Gustavo Kuerten of Brazil recorded his first victory on grass by defeating Chris Wilkinson 6-4, 6-4, 6-4.

Boris Becker battled from two sets down and overcame three match points in the fourth set against Briton Miles MacLagan to keep his final Wimbledon dream alive Tuesday. The 31-year-old, three-time champion won 5-7, 6-7, 6-4, 7-5, 6-2.

Former top-ranked Yevgeny Kafelnikov, the third seed, spent just five minutes completing his journey into the second round. Kafelnikov. the Australian Open champion, finished off a match held over from Monday by winning two games to beat Swede Magnus Larsson 6-7, 7-5, 7-6, 4-6, 7-5.

In another match held over in the final set, Jennifer Capriati beat Germany's Anke Huber 5-7, 6-3, 9-7. Spanish seventh-seed Arantxa Sanchez Vicario recovered after a slow start to beat Hungary's Annamaria Foldenyi 4-6, 6-3, 6-4.

Hingis, only the third top seed to ever lose a first-round match at Wimbledon, was outclassed and outplayed in every department by the Australian.

Dokic, 16, world junior champion last year, broke Hingis twice in the first set and never looked back, winning the match in just 54 minutes. ''I think I played quite well today,'' Dokic said in understating the magnitude of her achievement that catapulted her from obscurity to the spotlight.

``I have to keep my feet on the ground,'' she said. ``Just because I beat Martina doesn't mean I am going to win the tournament.''

Hingis, 18, and Wimbledon champion in 1997, looked bewildered after the loss. ``I couldn't pick up my game today,'' Hingis said. ``She didn't give me a chance to get into it -- she was too good for me today.''

Hingis fell behind 0-40 in the opening game and never recovered. Dokic, who won just three games in the only other match between the two -- a straight-sets Hingis victory at the Australian Open earlier this year -- matched her opponent shot for shot. At one point, Hingis changed her racquet, but Dokic never gave her an opening to come back.

Although her game was coming apart, Hingis stayed cool, avoiding the type of animated confrontation with officials that marred her appearance at this month's French Open.

Hingis missed a chance to break back in the second game, pushing a backhand long. Dokic bore down and denied Hingis another opportunity.

Hingis was without her normally ever-present mother Melanie Molitor, who had never missed a major tennis match featuring her daughter.

``It was decided to have a little bit of distance and work on our private lives. I wanted to be more independent rather than having someone else telling me what to do,'' Hingis said.

When Hingis spun out of control at the French Open -- ignoring etiquette, arguing with the umpire, serving under-arm and storming off court before the presentation ceremony -- it was Molitor who calmed her down and persuaded her to go back to receive the second-place award.

Wednesday, top seed and defending champion Pete Sampras for a second round match against Sebastien Lareau of Canada. In the women's draw Graf, now the top seed with Hingis's ouster, faces South African Mariaan de Swardt while Monica Seles confronts unseeded Marlene Weingartner.