STRASBOURG, France (AP) Fourth-seeded Kristina Mladenovic held off strong resistance from Alison Riske to reach the quarterfinals of the Strasbourg International on Wednesday with a 4-6, 6-4, 7-6 (5) victory.
After trailing 5-1 in the decider, Riske saved four match points and leveled at 5-5. Mladenovic stayed calm in the tiebreaker and sealed the match with an ace after more than three hours.
''Physically it was tough out there today. Long, tight rallies. A lot of mistakes from me,'' Mladenovic said. ''I took the tiebreak point by point, calmed things down. That was the key.''
Wild card Pauline Parmentier upset second-seeded Sloane Stephens 6-3, 1-6, 6-4, while Mirjana Lucic-Baroni defeated No. 8 Timea Babos 6-1, 6-4.
The outdoor clay-court event is a warmup for the French Open, which starts on Sunday.