Star Indian shuttlers P V Sindhu and Lakshya Sen notched up straight game wins to progress to the women's and men's singles quarterfinals of the US Open Super 300 badminton tournament here.

Double Olympic medallist Sindhu, seeded third, defeated Korea's Sung Shuo Yun 21-14 21-12. Fresh from his Canada Open Super 500 title last week, Sen beat Czech Republic's Jan Louda 21-8 23-21 in 39 minutes.