PARIS -- Top-seeded Sara Errani needed more than three hours to beat unseeded Carla Suarez Navarro 7-5, 4-6, 7-5 in the Open GDF Suez quarterfinals on Friday, while second-seeded Petra Kvitova and No. 3 Marion Bartoli both lost.
Complete results
Need the scores from any match played in today's tournaments? Results
Errani will play Kiki Bertens in the semifinals of the indoor tournament.
Bertens followed up her second-round win against fourth-seeded Dominika Cibulkova with another upset, beating No. 6 Lucie Safarova 6-1, 7-5.
There were more surprises in the quarters, as Kristina Mladenovic downed second-seeded Kvitova 6-3, 6-4, and Mona Barthel eliminated the third-seeded Bartoli 7-6 (7), 6-4.
