PERTH, Australia -- Kim Clijsters and Xavier Malisse led Belgium to a sweep of Uzbekistan on Thursday as Belgium moved into the semifinals of the the $1 million Hopman Cup.

Clijsters, the fifth-ranked women in the world, cruised to a 6-3, 6-2 romp over Iroda Tulyagnova in a match that lasted just 57 minutes. Malisse had a little more difficulty, but posted a 6-3, 6-7 (3-7), 6-2 victory over Oleg Ogorodov.

Clijsters and Malisse routed Tulyaganova and Ogorodov 6-1, 6-1, in 41 minutes to advance to a meeting with the United States on Friday.

The U.S. defeated defending champion Spain 3-0 on Wednesday in the tournament, a mixed team tennis championship.

The U.S.-Belgium winner will play Australia in Saturday's final. Despite a loss by world No. 1 Lleyton Hewitt, Australia defeated the Czech Republic to advance.

Hewitt won five titles in the 2002 season, including the season-ending Tennis Masters Cup in Shanghai. He cruised to straight-sets wins in his first two matches here this week, but fell to Jiri Novak 6-2, 3-6, 6-3 Thursday.

Alicia Molik had given the Australians the lead as she defeated Daja Bedanova, 7-6 (7-3), 7-5. Molik rallied from a 5-1 deficit in the first set and then teamed with Hewitt for a 4-6, 7-5, 7-6 (10-4) victory over Bedanova and Novak.

The tournament uses a "super" tiebreaker, in which the first team to 10 points, by at least two points, wins.