Top seeds Rohan Bopanna and Aisam-ul-Haq Qureshi moved into the doubles semi-finals in the $25,000 Challenger tennis event in Denver, USA.
The Indo-Pakistani pair defeated the United States' Rajeev Ram and Brian Wilson 6-3, 7-6 (7/4) in the quarter-finals on Thursday.
Harsh Mankad, partnering Briton Arvind Parmar, will play his last-eight tie against Jacob Adaktusson of Sweden and Chile's Juan Ignacio Cerda.