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.

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.

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,