Goran Ivanisevic, the No 2 seed, was beaten 6-2, 6-4 by South Africa's Marcos Ondruska, who is ranked 104 in the world. Despite Ivanisevic's serves coming in at over 200kph, Ondruska mastered the return, breaking Ivanisevic twice in the first set and once in the second.
The No 3 seed, Sweden's Thomas Enqvist went through but he took two hours to beat Marc-Kevin Goellner, of Germany, 7-6, 4-6, 6-4.
Richey Reneberg, a late replacement in the US team for Pete Sampras, who has an Achilles tendon injury, was forced to retire because of a groin injury in the third set of his opening round match yesterday against Leander Paes of India.
Reneberg's injury left his participation in doubt for the doubles, in which he is scheduled to play with MaliVai Washington, who staged a second- set comeback to beat Jan Kroslak of Slovakia 6-3, 7-6.
In the women's competition, the second seed, Conchita Martinez of Spain, beat Patty Schnyder of Switzerland 6-1, 6-2 and Monica Seles enjoyed a 6-0, 6-4 opening victory over Li Chen, of China, on Tuesday.Reuse content