Kazakhstan has advanced to the United Cup mixed teams tennis tournament semifinals with an unassailable 2-0 lead over a German team playing without the injured world No. 2-ranked Alexander Zverev. Zverev was a late scratch for Germany on Wednesday due to a biceps injury.

Great Britain will face Poland in the quarter-finals of the United Cup on Thursday despite losing their final group match 2-1 to hosts Australia. After their win over Argentina in the team competition on Monday, Britain knew one straight-sets success from three rubbers in Sydney would be enough to see them top the group.

Iga Swiatek has made a lightning start to her 2025 season after annihilating Norway's Malene Helgo at the United Cup 6-1 6-0 in just over an hour of play. Going into the match, the five-time Grand Slam champion was considered the massive favorite to beat the 404th-ranked Norwegian tennis player.

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

There are still three spots up for grabs for the quarterfinals of the United Cup and five teams are in contention. This article features the blockbuster tie between Poland and Czechia, the winner will top the group.