Coco Gauff ousted Karolina Muchova 6-1 6-4 at the United Cup, while Iga Swiatek overcame Elena Rybakina 7-6 (5) 6-4. In the opening rubber of the United States and Czech Republic semifinal, the 2023 US Open champion delivered a clinical performance firing eight aces and converting four of her eight break point chances.

Karolina Muchova has been the frontliner for the Czech Republic in their bid to win the United Cup in Perth. The 2023 French Open finalist will now face Team USA star Coco Gauff in the semifinals of the tournament.

Coco Gauff reflected on her experience teaming up with Danielle Collins during the recent United Cup. The world No. 3 recently advanced to the third round of the Australian Open, extending her winning streak to nine consecutive matches — the longest active run on the WTA Tour.

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.

Naomi Osaka seized victory on Wednesday, defeating No. 20 Karolina Muchova 1-6, 6-1, 6-3. Initially it looked like Osaka might be on her way to a quick ouster after she won just one game in the 32-minute first set.

Coco Gauff improved to 4-0 over Karolina Muchova with a perfect start to the United Cup semifinals for Team USA.

American Nishesh Basavareddy didn't defeat Novak Djokovic in Round 1, but the 19-year-old impressed the legend by winning the first set.