S-HERTOGENBOSCH, Netherlands (AP) Teenager Belinda Bencic of Switzerland will face veteran Jelena Jankovic of Serbia in the semifinals of the Topshelf Open after saving three match points in a 7-6 (4), 6-7 (4), 7-5 win against seventh-seeded Kristina Mladenovic of France on Friday.

The 18-year-old Bencic had match point at 6-5 in the second set, only for Mladenovic to fight back in a contest lasting nearly three hours. Mladenovic hit 16 aces and had three match points at 5-3 in the decider before Bencic surged back.

The 30-year-old Jankovic had it easier, beating German Annika Beck 6-4, 6-1.

Fifth-seeded Camila Giorgi of Italy also saved three match points in a 4-6, 6-3, 7-6 (9) win against Kazakhstan's Yaroslava Shvedova.

Giorgi next faces Dutchwoman Kiki Bertens, who beat third-seeded American Coco Vandeweghe - the defending champion - 6-4, 6-1.