Maria Sakkari beat Alize Cornet 6-4 6-2 in the first round after a health issue affected her French opponent.
Cornet was trailing 4-1 in the first set when she complained of feeling unwell and had her blood pressure checked before continuing.
Sakkari will next face Aliaksandra Sasnovich, who upset Victoria Azarenka 6-4 6-4 in a match that had been suspended overnight.
Wimbledon champion Elena Rybakina has suffered a surprise three-set defeat to Donna Vekic in the second round of the Berlin Open.
Croatia’s Vekic faced only two break points against the Kazakh world No.3 and saved them both in her 6-7 (7-1) 6-3 6-4 victory.
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.
“I stayed in the moment. I was just trying to play the next point, the next game,” Vekic, ranked No.23 in the world, 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 loser.
France’s Caroline Garcia, the No.3 seed, beat qualifier Jaimee Fourlis 6-3 6-2 and will next play former Wimbledon champion Petra Kvitova.
Kvitova eased to a 6-1 6-1 win over Nadia Podoroska in their second-round match which lasted a mere 49 minutes.
Source: AAP