2021-10-21 04:03:02 GMT+00:00 - Aryna Sabalenka, returning from a lengthy hiatus caused in part by a positive COVID-19 test, recorded a 7-6 (2), 4-6, 6-1 victory over Australia"s Ajla Tomljanovic on Wednesday in the second round of the VTB Kremlin Cup in Moscow. The top-seeded Belarusian withdrew from the event in Indian Wells two weeks ago after her positive test, and she received a first-round bye in Moscow. As a result, Wednesday marked her first action since falling to Canada"s Leylah Fernandez in the semifinals of the U.S. Open. Second-seeded Garbine Muguruza also needed three sets to win her opener, defeating the Czech Republic"s Tereza Martincova 6-4, 4-6, 6-3. The two Russian players in action Wednesday both won their second-round contests. Fourth-seeded Anastasia Pavlyuchenkova topped the United States" Bernarda Pera 6-2, 7-5, and Ekaterina Alexandrova routed Ukraine"s Anhelina Kalinina 6-4, 6-1. Tenerife Ladies Open Maria Camila Osorio Serrano beat a top-10 player for the first time in her career, as the 19-year-old Colombian upset top-seeded Elina Svitolina of Ukraine 5-7, 6-3, 6-2 in the first round at Tenerife, Spain. The day"s other action in the Canary Islands consisted of three second-round matches. Slovakia"s Anna Karolina Schmiedlova beat Romania"s Jaqueline Cristian 6-2, 7-5. The United States" Ann Li got past Russia"s Varvara Gracheva 6-4, 6-2, and France"s Alize Cornet advanced when China"s Xinyu Wang retired while trailing 6-1, 6-7 (5), 4-1.