This year's major tennis tournament champions - Amelie Mauresmo of France, Justine Henin-Hardenne of Belgium, and Maria Sharapova of Russia - have reached the semifinals of the WTA Championships in Madrid, Spain.

Mauresmo, the Australian Open and Wimbledon champion, beat Henin-Hardenne, the French Open winner, in three sets to secure a berth in the final four (4-6, 7-6, 6-2). Henin-Hardenne had previously earned a semifinal place by beating Nadia Petrova of Russia Thursday.

Sharapova, the U.S. Open champion, scored a straight-sets win over compatriot Svetlana Kuznetsova, 6-1, 6-4. Sharapova ended the round-robin portion of play undefeated (3-0) and plays Henin-Hardenne in the semifinals.

In the last match of the day, two-time former champion Kim Clijsters of Belgium scored an easy win over Elena Dementieva of Russia (6-4, 6-0). The Belgian plays Mauresmo in the semifinals.

The tournament is open to the top eight ranked women on the WTA Tour. The winner takes home $1 million.

Some information for this report provided by AP.