Sania Mirza and Anastasia Rodionova breezed past Megan Moulton-Levy and Lindsay Lee-Waters in straight sets to book a semi-final berth in the Estoril Open.
The second seeded Indo-Australian pair needed just 55 minutes to defeat their American opponents 6-0, 6-4 in the quarter-finals of the US $220,000 clay court event.
Sania-Rodionova saved four break-points in the match and converted the five they got.
They will meet Kazakhstan's third seeded pair of Yaroslava Shvedova and Galina Voskoboeva for a place in the final.
Rodionova had beaten Sania in the 2010 Commonwealth Games women's singles final.