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 on Sunday.

A dominant United States lifted its second United Cup mixed team tennis tournament title in three years, beating Poland 2-0 on Sunday.

Coco Gauff moved her head-to-head with Iga Swiatek one small step in the right direction with a 6-4, 6-4 win of at times outrageous quality in Sydney. Gauff’s victory gave Team USA a 1-0 lead in the United Cup final,

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.

An inspired and in-form Coco Gauff beat Iga Swiatek in straight sets Sunday to fire a warning shot ahead of the Australian Open.Gauff won all six of her previous singles and doubles matches this week and continued her streak when Swiatek double-faulted on match point at 4-5,

Big guns Coco Gauff and Taylor Fritz have swept Team USA to a 2-0 victory over Poland in the United Cup 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.