Top seeds Chen Long and Lin Dan both reached the quarter-finals of the Singapore Open on Thursday, but Viktor Axelsen was knocked out.
Chen was given a surprisingly stern test by Thailand’s Boonsak Ponsana before managing to prevail 17-21, 21-18, 21-9 after one hour and 11 minutes on court.
Only in the third and final game did the Chinese shuttler finally manage to take control of the match, eventually coasting to a pretty comfortable win.
Chen moves on to face Hong Kong’s Ng Ka Long Angus in the last eight, after he defeated Germany’s Marc Zwiebler in straight games, 21-15, 23-21.
Lin, meanwhile, was far more emphatic in his 21-13, 21-7 victory over Christie Jonatan, and moves on to face eighth seed Tommy Sugiarto, after the Indonesian beat Hans-Kristian Vittinghus 21-14, 21-16.
Sixth seed Tian Houwei also moved on after wrapping up a 21-18, 19-21, 21-9 victory over Hsu Jen Hao.
He will play South Korea’s Son Wan Ho for a place in Saturday’s semi-finals.
Son was responsible for the day’s only upset, hitting back from a game down to beat fourth seed Viktor Axelsen 14-21, 21-12, 21-7.