LUXEMBOURG (AP) _ Daniela Hantuchova of Slovakia upset top-seeded Nathalie Tauziat of France 2-6, 6-3, 6-4 Tuesday to advance to the quarterfinals of the WTA SEAT Open.

In first-round matches, defending champion and No. 5 seed Kim Clijsters of Belgium beat Denisa Chladkova of the Czech Republic 6-4, 1-6, 7-5; local favorite Claudine Schaul upset Tatiana Poutchek of Belarus 7-5, 6-4; sixth-seeded Anne Gaelle Sidot of France got past British qualifier Louise Latimer 6-1, 6-4.

Also, Alexandra Fusai beat French compatriot Amelie Cocheteux 4-6, 6-0, 6-4; Spain's Maria Sanchez Lorenzo defeated Erica De Lone of the United States 7-6 (6), 6-3.