Petra Kvitova of Czech Republic serves the ball against Kristýna Pliskova of Czech Republic during her Women's Singles second round match on Day Four of the 2021 usopen at USTA Billie Jean King National Tennis Centre in New York City. I September 02,2021 I 📷: Al Bello/albello55 I #GettySport #tennis #usopen #grandslam #petrakvitova