PV Sindhu made a merry off her women’s singles quarter-final as she took just 39 minutes to dismantle fifth seed Sun Yu of China 21-14, 21-9 at the Badminton World Championships in Glasgow on Friday.Sindhu dominated the proceedings from the word go and the Chinese could never really challenge the confident Indian.After a superb start to the first game, Sindhu went into the break with a massive 11-4 lead making Sun Yu look no match to her.Sindhu displayed patience and mixed-up her drop shots and smashes beautifully to put the Chinese into uncomfortable positions and raced to a 15-5 lead.The 2-time bronze medallists assures a medal at the Worlds for India!PV Sindhu defeats Sun Yu 21-14, 21-9 to enter #2017BWC SEMIS. ?? pic.twitter.com/XR9TStSNI8- BAI Media (@BAI_Media) August 25, 2017 Sun Yu fought back with three straight points to make it 9-16 but it was only a matter of time till the Indian took the first game.The second game began with an excellent 38-shot rally, which Sindhu won with an authoritative smash. Thereafter, it was the same story as Sindhu took five straight points to lead 6-1.Sun Yu staged a sort of comeback when she took the scoreline to 4-8 only for Sindhu to take control again and lead 11-4 at the break once more.Sun Yu tried body smashes, cross court shots and drop shots but Sindhu seemed to have a reply to everything that the Chinese threw at her.Hardly breaking a sweat, the world No. 3 easily won the game and stormed into the semi-finals.advertisementSindhu will next face 19-year-old Chinese Chen Yufei, who won the Junior World Championships last year and earlier beat Ratchanok Intanon of Thailand 14-21, 21-16, 21-12.Sindhu had earlier won two bronze medals at the World Championships in 2013 and 2014.Earlier in the day, Kidambi Srikanth crashed out of the tournament losing to world No. 1 Son Wan Ho 21-14, 21-18.