United Cup live: Zverev/Siegemund vs. Tsitsipas/Sakkari in the live stream and live ticker

Alexander Zverev and Laura Siegemund will face Petros Tsitsipas and Maria Sakkari in the decisive mixed doubles quarter-finals at the United Cup in Sydney. The match will be available live from 11:30 a.m. CET in the live stream on TennisTV.com and in our match tracker.