Participants Petra Kvitova and Casper Ruud both hailed the inaugural United Cup, saying on Sunday the new $15 million prize money tournament provided valuable experience for women on the tour as they compete as part of mixed-sex teams. The tournament – which has replaced the short-lived ATP Cup men’s team event as the 2023 season opener and concludes on Jan. 8 with the final – features 18 countries with ties played in Brisbane, Perth and Sydney.
