The second edition of the United Cup will take place between Perth and Sydney from December 29 to January 7 and will feature top-ranked tennis stars such as Novak Djokovic, Iga Swiatek, and Stefanos Tsitsipas.

16 countries have been confirmed for the international team competition, with the draw set to be announced on Monday 23 October, and tickets set to go on sale on Wednesday 25 October at 5:00 local time.

Four-time Grand Slam champion Swiatek will lead Team Poland, the top seed of the tournament. She will be joined by World No. 11 Hubert Hurkacz, who recently won his second ATP Masters 1000 title in Shanghai.

Seeded second is Team Greece, led by World No. 6 Maria Sakkari and World No. 7 Stefanos Tsitsipas. Meanwhile, the defending champions Team USA are the third seed and will be headed up by World No. 4 Jessica Pegula and World No. 10 Taylor Fritz, both of whom helped their team to victory last year.

Fourth-seeded Team France will feature World No. 10 Caroline Garcia and Adrian Mannarino, while Wimbledon champion Marketa Vondrousova will lead the Czech Republic alongside Jiri Lehecka.

Meanwhile, the host nation Australia will be steered by World No. 13 Alex de Minaur along with the likes of Ajla Tomljanovic, Storm Hunter, and John Millman.

Four new countries will make their debut at the United Cup this year, including Team Serbia led by 24-time Grand Slam champion and World No. 1 Djokovic. Also on his team will be rising talent Olga Danilovic.

Canada will also make its debut with young stars Felix Auger-Aliassime and Leylah Fernandez, while China will enter with Qinwen Zheng and Zhizhen Zhang. The Netherlands will also be present with appearances from Tallon Griekspoor and Arantxa Rus.

Other countries to watch out for include Germany - led by three-time Grand Slam champion Angelique Kerber and Top 10 player Alexander Zverev. In addition, Great Britain will be led by Cameron Norrie and Katie Boulter, while World No. 8 Casper Ruud will head up Team Norway.

"Wow, what a fantastic field we have for the United Cup in 2024, this will be an exciting and unmissable tennis experience this summer," said United Cup Tournament Director Stephen Farrow.