Vijayawada-born 20-year-old Rishika Sunkara, seeded top in singles, defeated Russian Viktoriya Bogoslovskaya in two well-contested sets 7-6 (2), 6-3 in the quarter-final match of the 10,000 dollar ITF Women's Tennis Tournament in Sharm El Sheikh (Egypt) today.Her opponent in the semi-final will be third seed ItalianGiulia Bruzzone who, down by one set, rallied to beat seventh seed Anastasiya Shestakova (Ukraine) 5-7 6-1 6-2.However, Rishika Sunkara's challenge in doubles ended.Partnering Ipek Soylu of Turkey, Rishika and her partner were defeated by Russian pair of Viktoriya Bogoslovskaya and Evgeniya Svintsova who won the semi-final contest by 3-6 7-5 10-6.