Sania Mirza and Martina Hingis beat Anabel Medina Garrigues of Spain and Yaroslava Shvedova of Kazakhstan to reach the Family Circle Cup tennis tournament's semi-finals.
The No.1-seeded Hingis and Mirza battled Medina Garrigues and Shvedova for an hour and 41 minutes for a 7-5, 4-6, 13-11 victory here on Friday.
