Croatia's Donna Vekic had to play twice on Saturday but did not drop a set as she cruised into the German Open final with a 6-4, 7-6(8) victory over world number eight Maria Sakkari of Greece.
source https://timesofindia.indiatimes.com/sports/tennis/top-stories/vekic-and-kvitova-win-two-matches-in-a-day-to-reach-german-open-final/articleshow/101245155.cms
source https://timesofindia.indiatimes.com/sports/tennis/top-stories/vekic-and-kvitova-win-two-matches-in-a-day-to-reach-german-open-final/articleshow/101245155.cms