Sania Mirza and her partner Elena Vesnina pulled off a big upset by ousting second seeds and strong contenders Liezel Huber and Lisa Raymonds from the Family Circle Cup with a straight-set win.
The unseeded but in-form Indo-Russian pair shocked the local favourites 6-3 6-4 in the first round of the USD 721,000 WTA hard court tournament.
The Sania-Elena pair saved eight break chances,including five in the second set,when the Americans doubled the intensity in a bid to stay in the match.
In the quarter-finals,they will take on the Russian-Australian combination of Alla Kudryavtseva and Anastasia Rodionova.
In the singles,Sania is set to clash with German wildcard Sabine Lisicki,who shocked fourth seed Marion Bartoli of France 6-2 6-3 in her seccond round match.