World number one Chen Long and his Chinese compatriot Lin Dan both advanced to the semi-finals of the Malaysian Open on Friday.
Chen recorded a straight game win against Kento Momota, beating the Japanese ace 21-16, 21-11 in a match the reigning world champion dominated from start to finish.
Lin had a significantly more difficult match, against another Chinese player Tian Houwei and dropped his first game of the tournament.
After losing the first game 21-11, the 31-year-old Lin showcased his renowned resilience to win the next to sets against a player eight years his junior 21-16, 21-13.
The Malaysian Open is one of the few titles the five-time world champion and twice Olympic gold medallist Lin has yet to win.
"I didn't play well in the first game and had to change my strategy in the second. If not, I would have lost," Lin said after the match.
In Saturday's semi-final, Chen will take on countryman Wang Zhengming, while Lin takes on world number two Jan O Jorgensen, who had an easy 21-9, 21-15 in the quarters against Hong Kong's Wei Nan.