Coco Gauff and Taylor Fritz powered the U.S., tournament winner two years ago, into the semifinals of the United Cup mixed teams tennis event on Wednesday. In the first singles match in Perth, Gauff got the ball rolling for her team with a gritty 7-6 (4),

Here is all you need to know about the last-eight tie of United Cup between Kazakhstan and Germany: preview, schedule, match-ups and live streaming details

Title holders Germany were knocked out of the United Cup on Wednesday when they fell 2-1 against Kazakhstan in the quarter-finals in the absence of their injured top player Alexander Zverev. World number six Elena Rybakina opened the tie in Perth with a commanding 6-3,