Sania Mirza and her partner Anastasia Rodionova breezed past Megan Moulton-Levy and Lindsay Lee-Waters in straight sets to book a semifinal berth in the Estoril Open, here.
The second seeded Indo-Australian pair needed just 55 minutes to defeat their American rivals 6-0 6-4 in the quarters. Sania and Rodionova saved four breakpoints in the match and converted five of the chances they got.
They will now fight it out with Kazakhstan's third seeded pair of Yaroslava Shvedova and Galina Voskoboeva for a place in the final.
Del Potro in quarters
Juan Martin del Potro celebrated the start of his pre-French Open campaign with a 6-1, 6-0 hammering of Portugal's Rui Machado to reach the quarterfinals on Thursday. Del Potro was playing on the surface for the first time this season after winning two clay Davis Cup rubbers at home in April when Argentina defeated Croatia.