Sania Mirza and Monica Niculescu stunned Wimbledon doubles champions Vania King and Yaroslava Shvedova to storm into the quarter-finals of the Cincinnati Women's Open Tennis tournament in USA. The unseeded Indo-Romanian pair shocked their fifth seed rivals 6-3, 1-6, 7-6 in the second round of the event. Earlier, they beat local pair of Melanie Oudin and Jamie Hampton 6-4, 7-6 in the opening round. They will next take on the winners of the match between pairs of Kveta Peschke andKatarina Srebotnik; and Maria Kirilenko and Victoria Azarenka.Sania failed to make the singles main draw after losing the first round of the qualifying event to 16th seed Serbian Bojana Jovanovski.