Unheralded Indian Mithun Manjunath stunned fourth seed and world number seven Kean Yew Loh of Singapore in the opening round while PV Sindhu and Kidambi Srikanth secured straight-game wins at the Australian Open badminton tournament in Sydney on Wednesday.
Manjunath, ranked 50th in the world, beat Loh 21-19 21-19 in the men's singles first round match that lasted 41 minutes. Manjunath faces the winner of the match between Lee Zii Jia and Leong Jun Hao -- both Malaysians -- in the second round of the BWF Super 500 tournament.
Meanwhile, Lakshya Sen conceded his men's singles match against compatriot Kiran George due to an injury. Sen was trailing 0-5 in the opening game when he decided to quit.
Fifth seed Sindhu, who has lost in the first round at seven different tour events this season and is playing under a new personal coach in Malaysia's Muhammad Hafiz Hashim, defeated compatriot Ashmita Chaliha 21-18 21-13 in 36 minutes in her opening women's singles match.