The United States swept China in Perth on Wednesday to punch their ticket to the semifinals of the United Cup in Australia. No. 4-ranked Taylor Fritz recorded a 6-4, 6-4 win over China's Zhizhen Zhang and Coco Gauff scored a 7-6 (4),

Iga Swiatek came from a break down in the final set to best Katie Boulter in a three-hour epic to deliver Poland to the semifinals at the United Cup in Sydney.

Poland secured its place in the semifinals of the United Cup with a victory over Great Britain on Thursday in Australia. Hubert Hurkacz got Poland, the second seed, off to a lead in the mixed-team event with a 7-6 (3),

Iga Swiatek led Poland to a 2-1 victory in its United Cup opening match on Monday in Sydney, Australia, eliminating Norway from the mixed-team event.

Iga Swiatek has overcome an evident injury problem to help Poland power past Great Britain and make the semi-finals of the United Cup.