Hingis upset

Berlin, May 16: Anna Kournikova picked up the biggest win of her career today at the German Open, stunning top-seeded Martina Hingis in two hard-fought sets in the quarter-finals.

Kournikova, let three match points slip away before ousting Hingis, 6-3, 7-6 7-1 at the 926,000 event.

Jana Novotna, the third seed, also advanced into the semi-finals with a 6-3, 5-7, 6-3 win against Romania8217;s Irina Spirlea.