KATOWICE, Poland – 2014 champion Alizé Cornet faced an unexpected challenge in the form of Bulgarian qualifier Isabella Shiniakova on her way to the second round of the Katowice Open, advancing after a 6-2, 6-7(6), 6-3 battle.

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“It was a very tough match,” Cornet said after the win. “Really happy I won as she played really good and moved so well.”

After quickly taking the first set, the Frenchwoman found herself unable to convert on any of the handful of break points that came her way. The match got even more complicated as Shinikova sent it to a tiebreaker and eventually took a set off the No.4 seed.

Cornet shook off the mid-match wobble and got back to work in the deciding set – she cruised to a quick win, despite a spell of dizziness at 4-2 up saw her have to call the trainer.

“In the third set I had trouble. I felt bad at that moment, but dug deep,” Cornet said of the mid-set scare. “I called the doctor just to double check it was nothing more serious. I don’t think it will be a big deal for rest of tournament.”

Earlier in the season, the Frenchwoman was facing up to six months out of action due to a back injury she sustained in the Australian Open. She ended up making her comeback to the tour in Miami after about two months off. Cornet appreciates these tough matches as a way to get back to her pre-layoff form.

“I’m not at the same level I was, so these sort of matches are good for me.”

Later in the day, No.8 seed Dominika Cibulkova came back from a set down to survive a tricky opening round challenge from Carina Witthoeft, prevailing 6-7(6), 6-4, 7-6(3) after a three-hour battle. Two-time Katowice finalist Camila Giorgi is also through, as well as Francesca Schiavone, Naomi Broady, and Jelena Ostapenko.