March 24, 1997
KEY BISCAYNE, Fla. - The $4.45 million Lipton Championships has already been disastrous for some top seeds and defending champs.
Today's victim : Women's No. 2 seed Arantxa Sanchez Vicario.
Vicario 
of Spain suffered just her third loss in 10 matches this year as she was upended in straight sets by Sandrine Testud of France, 6-0, 7-5.
SUNDAY, MEN'S NO. 3 SEED Michael Chang was upset by Sergi Brugera and Saturday defending champ Andre Agassi was eliminated.
Top seed Martina Hingis of Switzerland extended her 1997 unbeaten streak to 26 matches by downing number 16 Elena Likhovtseva of Russia, 6-3, 2-6, 6-3, to reach the quarterfinals.
Hingis will take on 10th seed Mary Joe Fernandez of the United States in the round of eight. Fernandez ousted fifth-seeded compatriot Lindsay Davenport, 6-2, 6-4.
Also, eighth seed Iva Majoli of Croatia earned a quarterfinal berth by downing Austria's Barbara Schett, 6-2, 4-6, 6-2, and number 11 Barbara Paulus of Austria topped Alexandra Fusai of France, 6-1, 2-6, 6-1.
HINGIS WILL BECOME THE YOUNGEST world number one when the next WTA Tour rankings are released on March 31st, taking over the top spot from injured Steffi Graf of Germany.
Hingis will be 16 years, six months when she claims the top spot, replacing Seles as the youngest number one ever. Seles was 17 years, three months and 19 days when she passed Graf on March 11th, 1991.
Seles had not played a tournament since last November, when she was forced to retire in her first-round match at the WTA Championships. She broke her right index finger last November and was unable to defend her Australian Open title in January. She also has been at the side of her father, Karolj, who is suffering from stomach cancer.
On the men's side, second seed Thomas Muster of Austria advanced to the round of 16 with a 6-1, 6-2 victory over German wildcard Tommy Haas.
NBC tennis analyst Bud Collins on:
Martina Hingis
Pete Sampras
Top seeds Hingis, Sampras advance
Philippoussis reaches 140 mph twice
Challenger series unveiled for Latin America
Chang ends 11-match win streak
Agassi loses fifth straight match