Prague WTA results on Saturday (x denotes seeded player): Quarter-finals Irina-Camelia Begu (ROM) bt Sara Sorribes Tormo (ESP) 6-2, 4-6, 6-2 Semi-finals Simona Halep (ROM x1) bt Irina-Camelia Begu (ROM) 7-6 (7/2), 6-3 Elise Mertens (BEL x3) bt Kristyna Pliskova (CZE) 7-5, 7-6 (7/4) afp