PERTH, Australia — Kazakhstan advanced to the United Cup mixed teams tennis tournament semifinals with an unassailable 2-0 lead over Germany, a team playing without injured world No. 2-ranked Alexander Zverev.
Zverev was a late scratch on Wednesday because of a biceps injury. He was scheduled to face Alexander Shevchenko but withdrew at the last minute with Kazakhstan leading the 1-0 after Elena Rybakina beat Laura Siegemund 6-3, 6-1.
Shevchenko beat Zverev’s replacement, Daniel Masur, 6-7 (5), 6-2, 6-2 to clinch the tie for Kazakhstan while Zverev watched from the sidelines.
Shevchenko took a medical timeout due to heat exhaustion while leading 1-0 in the second set. He came back from the break to dominate the rest of the match.
“It was a heat problem for sure,” Shevchenko said. “I had a bit of a headache, my head was spinning. It was a struggle this match. To play in this heat was so tough.”
The United States will play China on Wednesday night in the second quarterfinal in Perth. Coco Gauff and Taylor Fritz led the U.S. into the final eight with a win in their final round-robin match Tuesday.
In Sydney, Iga Swiatek and Hubert Hurkacz won their deciding mixed doubles match over the Czech Republic to quality Poland for the quarterfinals.
World No. 2 Swiatek and Hurkacz beat Tomáš Macháč and Karolína Muchová 7-6 (3), 6-3 in the decider at Sydney’s Ken Rosewall Arena. The Polish team led 5-2 before allowing the Czechs back into the set.
In earlier singles, Macháč gave the Czech Republic the lead with a 7-5, 3-6, 6-4 win over Hurkacz before Swiatek evened things with a 6-3, 6-4 win over Muchová.
Later Wednesday in Sydney, Britain was scheduled to play Australia for a place in the quarterfinals.
In Sydney, Italy earlier won Group D to qualify for the quarterfinals. Winners of the past two Davis Cups and runners-up two years ago to the U.S. in the inaugural edition of the season-opening mixed teams’ event, Italy won its group without world No.1 Jannik Sinner.
All tournament play shifts to Sydney from Thursday through to Sunday’s final.
