Coco Gauff and Iga Swiatek will battle for United Cup glory after the USA and Poland won their respective semi-finals on Saturday in Sydney amid bizarre circumstances.

Poland marched into a second successive final at the United Cup mixed team tennis tournament on Saturday with a convincing 2-0 victory over Kazakhstan after Hubert Hurkacz and Iga Swiatek won their singles matches.

Coco Gauff says she is feeling great and plans to play "confident tennis" in a United Cup showdown versus Iga Swiatek. On Saturday, the top-ranked American female tennis player impressively handled the business against Karolina Muchova, dismantling the Czech 6-1 6-4 to help the United States reach the final in Sydney.

Five-time Grand Slam champion Iga Swiatek beat Elena Rybakina in straight sets to take Poland into the final of the mixed-teams United Cup on Saturday with victory over Kazakhstan.

Iga Swiatek secured a major victory over Elena Rybakina, 7-6(5), 6-4, to send Poland into another United Cup final. The Polish star excelled in key moments, avenging her losses to the 2022 Wimbledon champion,

Iga Swiatek sent Poland soaring into their second straight United Cup final by battling past one of her most challenging rivals in their semifinal tie in Sydney on Saturday.

Poland returned to the semi-finals of the United Cup mixed team tournament for a third successive year after hard-fought singles victories in Sydney handed them an unassailable 2-0 lead over Britain on Thursday.

The British number one had a break point at 4-4 in the deciding set against Poland’s five-time grand slam winner.

Iga Swiatek and Katie Boulter had a couple of animated discussions during and after their three-hour epic at the United Cup, but the Pole wasn't giving anything away.