India’s Velavan Senthilkumar and Abhay Singh entered the quarter-finals of the prestigious USD53,500 QSF 3 squash tournament with stunning second-round wins over seeded opponents here.

Reigning national champion Senthilkumar defeated Egyptian seventh seed Omar Mosaad, a former world No. 3, 13-11, 11-3, 9-3 after the latter retired in 30 minutes due to an injury.