Down but not out, Serena Williams into Australian Open QFs
United States' Serena Williams falls during her fourth round match against Aryna Sabalenka of Belarus at the Australian Open tennis championship in Melbourne, Australia, Sunday, Feb. 14, 2021. (AP Photo/Hamish Blair)MELBOURNE – Serena Williams tumbled to the ground, her heavily taped right ankle turning, her body contorting, her racket flying. Grabbing the last two games, Williams pulled out 6-4, 2-6, 6-4 victory over No. Oh, my goodness.”Sabalenka — a 22-year-old from Belarus playing in only her second fourth-round Slam match — was visibly and audibly frustrated. Dominic Thiem — the Australian Open runner-up and U.S. Open champion in 2020 — looked physically compromised in a 6-4, 6-4, 6-0 loss to three-time major semifinalist Grigor Dimitrov.