Lakshya Sen marched into the last-four stage of the US Open Super 300 badminton tournament, but it was curtains for PV Sindhu after she suffered a straight-game defeat to crash out in the quarterfinals.

Sindhu, ranked 12th in the world and seeded third here, was stunned 20-22 13-21 by 24-year-old Gao Fang Jie of China in women singles, while Lakshya defeated S Sankar Muthusamy Subramanian 21-10 21-17 in an all-Indian men's singles match on Friday night.