Moya, the fourth seed from Spain, gutted out a 3-6, 1-6, 6-4, 6-2, 6-4 first-round win over Austria's Markus Hipfl. Hingis, in search of the only Grand Slam title she has never won, isposed of Dutchwoman Amanda Hopmans, 6-1, 6-4.

The top seed on the men's side, world No. 1 Yevgeny Kafelnikov of Russia, starts his bid for his second straight Grand Slam title later today when he faces American Michael Chang in a battle of former French Open winners.

Defending champion Arantxa Sanchez-Vicario of Spain and sisters Venus and Serena Williams are among the notable women in action. Sanchez-Vicario, the seventh seed, faces Croatian teenager Mirjana Lucic; the fifth-seeded Venus Williams, expected to be Hingis' biggest obstacle to the title, meets Frenchwoman Alexandra Fusai; and Serena Williams, the 10th seed, battles Laurence Courtois of Belgium.

Earlier today, Croatia's Goran Ivanisevic became the first men's seed to get knocked out as Moroccan Hicham Arazi bounced the slumping 15th seed, 6-4, 1-6, 6-3, 6-1.

Five other men's seeds play their first-round matches today. Fifth seed Richard Krajicek of the Netherlands meets American Jan-Michael Gambill; seventh seed Tim Henman of Britain goes against Karim Alami of Morocco; and ninth seed Marcelo Rios of Chile, fresh off winning his second claycourt title of the year last week in St. Polten, Austria, plays Germany qualifier Axel Pretzsch.

In addition, No. 12 Greg Rusedski of Britain faces Germany's David Prinosil, and No. 13 Andre Agassi of the United States, who has battled a shoulder injury over the past month, has a tough opening-round opponent in Argentina's Franco Squillari, the winner of the BMW Open claycourt event in Munich earlier this month.

Also, former two-time champion Jim Courier of the United States dispatched Spain's Alex Calatrava, 6-1, 6-3, 7-5, earlier today and Austria's Thomas Muster, the 1995 champion, meets Australian Open semifinalist Nicolas Lapentti of Ecuador.

For the women, reigning Wimbledon champion Jana Novotna of the Czech Republic, the fourth seed, looks to avenge a shocking first-round loss last month in Budapest, Hungary when she faces Ludmila Cervanova of Slovakia. In addition, No. 12 Sandrine Testud of France takes on Sandra Nacuk of Yugoslavia; No. 13 Dominique Van Roost of Belgium goes against Austria's Barbara Schwartz; and No. 15 Barbara Schett of Austria plays Henrieta Nagyova of Slovakia.

In another match of note, Amelie Mauresmo of France could force a rematch of this year's Australian Open final with Hingis in the second round if she beats American Tara Snyder.