Doha: Justine Henin reached the quarterfinals of the Qatar Open after beating Alicia Molik of Australia 6-2, 7-6 (9) on Wednesday.The second-ranked Henin, who won the Dubai Open last week, saved two set points in the tiebreaker and wasted four match points."I lost a bit of intensity in the second set," Henin said. "It was also very windy on court and that made things difficult."The top-seeded Belgian is now 5-0 against Molik, who has returned after being diagnosed with a chronic inner ear infection. "It's always tough against a player like her and she has done well to come back so strongly after her health problems," Henin said. "It's great to see her back at this level. She is also a nice person."Henin will next face fifth-seeded Patty Schnyder of Switzerland, who beat Anabel Medina Garrigues of Spain 6-3, 6-4."Patty has given me a lot of trouble in the past," Henin said. "We have had several three set matches."Second-seeded Svetlana Kuznetsova of Russia and third-seeded Martina Hingis also won. Kuznetsova topped Julia Goerges of Germany 7-5, 6-1, while Hingis beat Maria Kirilenko of Russia 6-2, 6-2.Other seeded players advancing were Jelena Jankovic, Daniela Hantuchova and Francesca Schiavone.