Zheng Qinwen is out of the Australian Open after a shock defeat to Germany’s Laura Siegemund. Zheng, the No. 5 seed and last year’s beaten finalist, lost 7-6(3), 6-3 after her serve unraveled in the fourth game of the second set. Zheng, who had got the match back on serve from 0-2 down, received a time violation from umpire Thomas Sweeney before serving two double faults to go down 3-1. Siegemund, 36, held her nerve from then on to knock out one of the star players of 2024. “I couldn’t catch the