Kim Clijsters (l) and Russia's Svetlana Kuznetsova
U.S. Open tennis champion Svetlana Kuznetsova of Russia has ended Kim Clijsters' 17-match winning streak by beating the Belgian in the semifinals of the J&S Cup tennis tournament in Poland.

Kuznetsova overcame a first-set loss to beat Clijsters in three sets, 2-6, 6-2, 6-3.

The Russian takes on another Belgian - former world number one Justine Henin-Hardenne - in the finals Sunday. Henin-Hardenne scored a straight-set win over Serbia-Montenegro's Ana Ivanovic 6-4, 7-5.

Henin-Hardenne and Kuznetsova have met six times before but never on clay. Henin-Hardenne leads the head-to-head match up, 5-1.

The clay-court tournament is one of several events players are using to prepare for the second major tournament of the year, the French Open, which starts May 23 in Paris.

Some information for this report provided by AP.