Second seed Karolina Pliskova achieved her best result yet at the French Open when she survived a back and forth battle against Ekaterina Alexandrova on Thursday to progress to the third round at the Roland Garros for the first time in her career.

She won a see-saw contest against the Russian 6-2 4-6 6-3 to reach the third round of the 2017 French Open. The Czech, who was the losing finalist in the 2016 US Open, looked poised for a comfortable straight set victory after dominating in the opening set.

The World Number 3 suddenly lost her step in the second set, inexplicably committing unforced errors which lead to Alexandrova coming back to level the match at one set apiece.

In the second set, the Russian World Number 86 failed to convert a set point at 5-3 but later in the next game corrected her mistake to take the set 4-6. Pliskova came roaring back in the third set and midway through the set, she broke through. She later converted on her second match point to win the set.

“I did not play by best tennis today but I am happy I have finally reached the third round. Still not really happy with the way I was playing. I would say I played a little bit better than in the first round. I feel like I can be more aggressive sometimes. I was playing too short so that is why she was pushing me a little bit more. I know I can play better if I go deep in the tournament. What I done even today it is kind of special still. I have a chance,” said Pliskova to the reporters after her victory.

Pliskova will face Germany’s Carina Witthoft in the third round of the 2017 French Open on Saturday. Witthoft defeated France’s Pauline Parmentier in her 6-4 7-6 (7-5) second round victory on Thursday.