She was due for some good luck after what she has been through.
"It's tough to say if I'm surprised," she said. "I came here not with the great results on the hard court, but on the other hand, I feel that I'm playing good in the tennis matches or in the practices, whatever."
Her fourth-round opponent will be No. 3 seed and recent Wimbledon winner Garbine Muguruza of Spain, who rolled past Magdalena Rybarikova of Slovakia 6-1, 6-1 on Friday and has lost nine games in the first three rounds. Kvitova holds a 2-1 career edge over Muguruza.
"I think she's an incredible player. It's going to be interesting," Muguruza said.
For Kvitova, it will be an opportunity to enjoy something close to her old "normal" life. Those moments are few, but welcome.
"She has a great game. She has a good confidence right now, as well. I think she's really going for the shots and playing her best, for sure," Kvitova said of Muguruza. "It's nice to play someone who won a Grand Slam this year. I'm really looking forward for the big stage and for that match."
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