Defending champion P V Sindhu today stormed into the semi-finals of the women's singles Badminton competition after beating China's Han Li in three games at the Macau Open Grand Prix Gold. World No. 11 Sindhu prevailed over the fifth seeded Chinese 21-17, 19-21, 21-16. She will next take on the winner of the match between Canada's Michelle Li and Busanan Ongbumrungpan of Thailand.