Doha: Top-seeded Justine Henin survived a scare from No. 5 Patty Schnyder on Thursday to reach the Qatar Open semifinals with a 3-6, 6-4, 7-5 victory. The Belgian enjoyed good fortune in the final set, getting help from the net cord three times including match point. Earlier on Thursday, sixth-seeded Daniela Hantuchova rallied from a set down and 1-4 in the second to upset No 3 Martina Hingis 1-6, 6-4, 6-4. "In my mind I always knew I had a chance," said Hantuchova, who won seven consecutive games at one point. "With Martina missing a lot of balls I knew it was a matter of time." Fourth-seeded Jelena Jankovic of Serbia also advanced to the semifinals, beating Kateryna Bondarenko of Ukraine 6-3, 6-3. Second-seed Russian Svetlana Kuznetsova defeated Francesca Schiavone of Italy, 6-3, 6-4 and next will play Hantuchova, while Henin faces Jankovic. Hantuchova appeared headed for defeat, but won five straight games to take the second set and then broke Hingis to open the final set with a 2-0 lead. Hingis broke back at 4-4, but the Swiss then sent two easy shots wide to fall behind again and Hantuchova held serve to win the match. Henin used a net cord point in the fourth game to break the left-handed Schnyder and draw level at 2-2. The Belgian saved match point at 4-5, 30-40 on another net cord, breaking Schnyder when the ball clipped the net and fell in. Henin won her next game at love and then completed the victory when the ball tantalizingly fell into Schnyder's court after hitting the net on the last point.