Best Photos From Day 2 At The United Cup

_{^{Frances Tiafoe celebrates winning first set in Sydney on Friday.}}

_{^{Frances Tiafoe and Tomas Machac ahead of their United Cup match.}}

_{^{Petra Kvitova in action on Friday.}}

_{^{Petra Kvitova celebrates her victory in Sydney.}}

_{^{Matteo Berrettini competes for Team Italy on Friday in Brisbane.}}

_{^{Maria Sakkari secures victory for Team Greece in Perth. Photo Credit: Getty Images}}

^{_{Grigor Dimitrov supports Dimitar Kuzmanov from the Team Bulgaria player box on Friday in Perth.}}

_{^{Maria Sakkari and Stefanos Tsitsipas share a joke during their mixed-doubles victory on Friday afternoon in Perth.}}

_{^{Jason Kubler celebrates victory against Daniel Evans.}}

Photo Credit: TENNIS AUSTRALIA