Donna Vekic upsets defending Wimbledon champion Elena Rybakina in the Berlin Open

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Wimbledon champion Elena Rybakina's preparations for the grass-court Grand Slam hit a snag Wednesday when she lost to Donna Vekic 6-7 (1), 6-3, 6-4 in the second round of the Berlin Open.

Vekic faced only two break points and saved them both. It was Rybakina's second match, after beating qualifier Polina Kudermetova on Tuesday, since withdrawing ahead of her third-round match at the French Open when a virus left her with breathing difficulties.

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Donna Vekic of Croatia reacts to defeating Elena Rybakina of Kazakhstan in the second round on Day 5 of the bett1open 2023 Berlin at LTTC Rot-Weiß e.V. on June 21, 2023 in Berlin, Germany  (Robert Prange/Getty Images)

"I stayed in the moment. I was just trying to play the next point, the next game," Vekic said. "I was like ‘Just stay with her. The chances will come.’"

Vekic's next opponent will be Elina Avanesyan, who lost in qualifying but then got a main-draw spot as a lucky after another player withdrew.

Caroline Garcia beat qualifier Jaimee Fourlis 6-3, 6-2 and will next play former Wimbledon champion Petra Kvitova.

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Elena Rybakina of Kazakhstan in action against Donna Vekic of Croatia in the second round on Day 5 of the bett1open 2023 Berlin at LTTC Rot-Weiß e.V. on June 21, 2023 in Berlin, Germany  (Robert Prange/Getty Images)

"The best practice is to play matches so obviously I feel more confident in my movement," the third-seeded Garcia said of adapting to grass after clay tournaments. "Today, I had a good time on Center Court. I