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PERTH, Australia — 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. He was scheduled to face Alexander Shevchenko but withdrew at the last minute with Kazakhstan leading the tie 1-0 after Elena Rybakina beat Laura Siegemund 6-3, 6-1.

Shevchenko beat Zverev’s replacement...