Coco Gauff overcame second-ranked Iga Swiatek 6-4, 6-4 in the opening singles of the United Cup mixed teams tennis event and the United States went on to win the final by beating Poland 2-0. Taylor Fritz beat Hubert Hurkacz 6-4,

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.

Coco Gauff roared past Iga Swiatek to inspire team USA Sunday before Taylor Fritz sealed the United Cup title with victory over Poland's Hubert Hurkacz in Sydney. Gauff opened with a statement 6-4, 6-4 win over Swiatek in 1hr 51min of hard-hitting tennis to fire a warning shot ahead of the Australian Open.

Coco Gauff and Taylor Fritz led the top-seeded United States to a sweep of second-seeded Poland, winning the United Cup championship in Sydney on Sunday.