United Cup Tennis Sydney 2025. Great britain will complete the top six seeded countries to contest the third edition of the united cup in sydney, australia, with british no.1 katie boulter leading the charge. Below is a list of all 18 countries.
Sydney’s first matches are on december 28, when france and switzerland. Eighteen countries will take part in the 2025 event, with sydney and perth set to host nine teams each.