Key changes have been made to the United Cup ahead of the second edition, which is set to take place between two cities on opposite sides of Australia.

The inaugural edition of the United Cup took place between December 2022 and January 2023, with 18 countries battling it out on the hard courts ahead of the Australian Open.

The tournament was won by the United States, with a talented team including Taylor Fritz, Frances Tiafoe, and Jessica Pegula, and was held across three different cities - Brisbane, Perth, and Sydney.

This year, the United Cup will look a little different. It has been announced that fewer matches will be played and the tournament will only take place between two cities, Perth and Sydney.

The first tournament saw each team playing two men's singles and two women's singles matches along with a mixed doubles match. At the time, Rafael Nadal urged organizers to alter the format to avoid so many dead rubbers.

Now, it has been announced that the upcoming tournament, which will be held from December 29 - January 7, will have ties featuring just one men's singles and one women's singles match before a mixed doubles match.

The United Cup director Stephen Farrow has spoken about the 2024 tournament, calling the event "unique" in the calendars of the ATP and WTA Tours.

"After the brilliance of the inaugural United Cup in 2023, I'm delighted the mixed team event will return to Sydney and Perth in 2024.

"The United Cup holds a unique position in global tennis, with the world's best men and women representing their country at the highest level. Eighteen teams, featuring some of the biggest personalities in the sport, will play across two cities for big prizemoney and big ranking points.

"We saw this year how passionate and intense the crowds were in supporting the United Cup – it was tennis at its very best. That's what it's all about and we can't wait to bring that excitement and energy back to Sydney and Perth this summer," Farrow said.

The draw for the 2024 United Cup will take place on October 23.