Karolina Pliskova of the Czech Republic celebrates after winning her match against Petra Kvitova of the Czech Republic during their singles round robin match of the BNP Paribas WTA Finals 2018 at the Indoor Stadium in Singapore, 25 October 2018. EPA-EFE/, Image: 392589706, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia, TEMP EPA