Top seed and world number two Petra Kvitova lasted 83 minutes before crashing out in the WTA St. Petersburg Open quarter-final at the hands of Donna Vekic on Friday.
Kvitova, who had earlier defeated Victoria Azarenka in the second round following a first round bye, lost the first set in a closely-fought encounter to begin with but Vekic raced away to a stunning 6-4, 6-1 win.
Ranked 30th in the world, Vekic racked up six successive games in the second set to complete a one-sided encounter in the end and register the best ever win of her career at the WTA St. Petersburg Open.
Czech player Kvitova, who had come into this competition after having lost in the final of the Australian Open, had earlier beaten Vekic in their only previous meeting in 2014. And she had gone into this match as a huge favourite but 42 unforced errors played a huge part in Vekic’s victory.
.@DonnaVekic takes a tight opening set against Kvitova, 6-4!
— WTA (@WTA) February 1, 2019
Of course, what also helped Vekic was that she won five of the nine break points she got, and entered the semi-final of the St. Petersburg Open in the process. She will now take on the winner of the all-Russian match between Daria Kasatkina and Vera Zvonareva.
In another quarter-final that was played earlier in the day, Aryna Sabalenka, the fourth seeded continued her march as the next big player to watch with a straight-set rout of Russian qualifier Ekaterina Alexandrova.
Sabalenka won 6-3, 6-4, and will now take on either second seeded Kiki Bertens or Anastasia Pavlyuchenkova in the other semi-final.