Birmingham - Daniela Hantuchova outlasted 12th seed Kristina Mladenovic in the third round of the Aegon Classic on Thursday after rain interrupted play.
Hantuchova, a previous finalist in Edgbaston, was trailing 6-3, 3-3, 40-0 to the Frenchwoman before all matches were suspended due to rain.
When the tennis resumed later in the day, the Slovakian world No.60 fought back to take the match into a deciding set where she sealed the win 3-6, 7-6(6), 6-4.
The former world No.5 will now play former Grand Slam Champion Francesca Schiavone of Italy.
Donna Vekic vs Maria Sanchez
On court one, 16 year- old Donna Vekic of Croatia rallied back from a set down to beat American Maria Sanchez 4-6, 6-2, 6-2 to book a spot in the Aegon Classic quarter-finals, the second of her career.
Madison Keys vs Mona Barthel
American Madison Keys stormed into the final eight with straight sets 6-3, 6-2 victory over sixth seeded German Mona Barthel.
Keys, who retained a high first serve percentage throughout the match said afterwards: "I played well and served well. I just try and keep getting better and better."
Results from the fourth day of the WTA Birmingham Open (x denotes seeding):
Third round:
Magdalena Rybarikova (SVK x16) bt Kirsten Flipkens (BEL x1) 7-6 (7/5), 6-2
Madison Keys (USA) bt Mona Barthel (GER x6) 6-3, 6-2
Sorana Cirstea (ROM x3) bt Bojana Jovanovski (SRB x13) 6-1, 1-6, 6-1
Alison Riske (USA) bt Alla Kudryavtseva (RUS) 6-1, 6-2
Daniela Hantuchova (SVK) bt Kristina Mladenovic (FRA x12) 3-6, 7-6 (8/6), 6-4
Donna Vekic (CRO) bt Maria Sanchez (USA) 4-6, 6-2, 6-2
Francesca Schiavone (ITA x15) bt Marina Erakovic (NZL) 7-6 (7/3), 6-3
Hantuchova, a previous finalist in Edgbaston, was trailing 6-3, 3-3, 40-0 to the Frenchwoman before all matches were suspended due to rain.
When the tennis resumed later in the day, the Slovakian world No.60 fought back to take the match into a deciding set where she sealed the win 3-6, 7-6(6), 6-4.
The former world No.5 will now play former Grand Slam Champion Francesca Schiavone of Italy.
Donna Vekic vs Maria Sanchez
On court one, 16 year- old Donna Vekic of Croatia rallied back from a set down to beat American Maria Sanchez 4-6, 6-2, 6-2 to book a spot in the Aegon Classic quarter-finals, the second of her career.
Madison Keys vs Mona Barthel
American Madison Keys stormed into the final eight with straight sets 6-3, 6-2 victory over sixth seeded German Mona Barthel.
Keys, who retained a high first serve percentage throughout the match said afterwards: "I played well and served well. I just try and keep getting better and better."
Results from the fourth day of the WTA Birmingham Open (x denotes seeding):
Third round:
Magdalena Rybarikova (SVK x16) bt Kirsten Flipkens (BEL x1) 7-6 (7/5), 6-2
Madison Keys (USA) bt Mona Barthel (GER x6) 6-3, 6-2
Sorana Cirstea (ROM x3) bt Bojana Jovanovski (SRB x13) 6-1, 1-6, 6-1
Alison Riske (USA) bt Alla Kudryavtseva (RUS) 6-1, 6-2
Daniela Hantuchova (SVK) bt Kristina Mladenovic (FRA x12) 3-6, 7-6 (8/6), 6-4
Donna Vekic (CRO) bt Maria Sanchez (USA) 4-6, 6-2, 6-2
Francesca Schiavone (ITA x15) bt Marina Erakovic (NZL) 7-6 (7/3), 6-3