NASDAQ 100 Open
$6.44 million tournament
At Miami
Men
Singles
Fourth round
Nicolas Lapentti (20), Ecuador, def. Adrian Voinea, Romania, 6-2, 3-6, 6-3.

Juan Ignacio Chela, Argentina, def. Gaston Gaudio, Argentina, 6-1, 5-7, 4-3, retired.

Roger Federer (12), Switzerland, def. Tim Henman (5), Britain, 6-2, retired.

Andre Agassi (9), United States, def. Thomas Johansson (8), Sweden, 7-5, 6-2.

Marcelo Rios (31), Chile, def. Alex Corretja (16), Spain, 6-2, 6-2.

Doubles
Second round
Ivan Ljubicic, Croatia, and Cedric Pioline, France, def. Radek Stepanek and Cyril Suk, Czech Republic, 4-6, 7-6 (6), 6-2.

Third round Mahesh Bhupathi, India, and Brian MacPhie, United States, def. Julian Knowle, Austria, and Michael Kohlmann, Germany, 7-5, 4-6, 6-1.

Chris Haggard, South Africa, and Tom Vanhoudt, Belgium, def. Julien Boutter, France, and Sjeng Schalken, Netherlands, 6-7 (5), 7-6 (5), 6-4.

Gaston Etlis and Martin Rodriguez, Argentina, def. Tim Henman, England, and Lleyton Hewitt, Australia, walkover.

Donald Johnson and Jared Palmer, United States, def. Michael Llodra and Fabrice Santoro, France, 6-2, 7-6 (4).

Roger Federer, Switzerland and Max Mirnyi (11), Belarus, def. Wayne Black and Kevin Ullyett (5), Zimbabwe, 6-2, 6-1.

Women
Singles
Quarterfinals
Venus Williams (2), United States, def. Elena Dementieva (12), Russia, 5-7, 6-3, 6-2.

Martina Hingis (3) vs. Serena Williams (8), postponed by rain until Wednesday.

Doubles
Second round
Lisa Raymond, United States, and Rennae Stubbs (1), Australia, def. Daja Bedanova, Czech Republic, and Elena Bovina, Russia, 6-1, 6-4.

Janet Lee, Taiwan, and Wynne Prakusya, Indonesia, def. Cara Black, Zimbabwe, and Elena Likhovsteva, Russia, 6-7 (5), 6-4, 7-5.

Virginia Ruano Pascual, Spain, and Paola Suarez, Argentina, def. Nathalie Dechy, France, and Meilen Tu, United States, 6-3, 7-5.

Justine Henin, Belgium, and Meghann Shaugnessy, United States, def. Jelena Dokic, Yugoslavia, and Conchita Martinez, Spain, 3-6, 6-2, 6-3.