Karolina Muchova turned on the style during a 6-2, 6-2 victory over fourth-ranked Jasmine Paolini at the United Cup to help the Czech Republic secure a win over Italy and a semifinal spot against the United States.

The Czech Republic ended Italy's quest to claim a third straight team competition title on Friday, thumping them 2-0 to reach the semi-finals of the United Cup and book a meeting with former champions the United States.

Coco Gauff and Taylor Fritz have powered the U.S. into the semifinals of the United Cup mixed teams tennis event.

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),

Karolina Muchova dismantled Jasmine Paolini in straight sets to help the Czech Republic beat Italy on Friday and set up a United Cup semi-final against the United States.

The second semifinal of this year’s United Cup is as exciting as the first one and perfectly balanced. World No.3 Coco Gauff will take on Karolina Muchova and world No.4 Taylor Fritz will face Tomas Machac.

Karolina Muchova and Tomas Machac have launched Czechia into the United Cup semi-finals with straight-sets triumphs in their singles matches against Italy.