KUALA LUMPUR: Lee Zii Jia maintained his perfect form at the All England by reaching the quarter-finals yesterday.
The World No 13 took only 36 minutes to overcome China's Lu Guangzhu 21-10, 21-16 at the Arena Birmingham in Birmingham.
He faces either two-time Olympic champion Lin Dan or reigning Olympic winner Chen Long of China next.
In the mixed doubles, Tan Kian Meng-Lai Pei Jing lost 21-19, 18-21, 21-10 to Praveen Jordan-Melati Daeva Oktavianti of Indonesia.