Aryna Sabalenka recovered from a second-set slipup to reach the St. Petersburg Ladies Trophy quarter-finals, beating Belgium's Alison van Uytvanck 6-1, 6-4. In her first match since reaching a career-high world ranking of number 10 on Monday, the Belarusian trailed 3-1 in the second before winning four games in a row. The 20-year-old Sabalenka, who had a first-round bye, will next face Ekaterina Alexandrova, who beat qualifier Tereza Martincova 7-5, 6-2. Sabalenka defeated Alexandrova 6-3, 6-3 this month on her way to winning the Shenzhen Open title.