Third seed Lin Dan is out of the German Open after going down in straight sets to Denmark’s Emil Holst.
Lin – a two-time Olympic champion – would not have expected to be troubled by his opponent in this third-round clash, but the reality proved very different.
The Chinese shuttler went down 21-10, 21-16 in a huge upset result.
Lin was totally outplayed in the first game, trailing by as much as 14-3 early on before losing it convincingly.
Holst did not let up in the second game either, pulling away from 14-all by going on a five-point winning streak, and wrapping up match point shortly after.
Second seed Chen Long safely progressed after getting the better of India’s Kidambi Srikanth.
The Chinese player triumphed in a tight encounter, by a 21-19 and 22-20 margin.
Others seeds to advance included Angus Ng Ka Long and Chou Tien Chen, but Marc Zwiebler was forced to retire against Kim Bruun with the scores tied at a game apiece.
There was no stopping top seed Carolina Marin in the women’s draw. The Spaniard booked her place in the quarter-finals with a convincing 21-15, 21-8 victory over qualifier Priskila Siahaya.
Second seed Akane Yamaguchi also advanced after battling past Sabrina Jaquet 16-21, 21-13, 21-14.
Less fortunate was Busanan Ongbamrungphan, the third seed. The Thai shuttler was beaten 21-19, 17-21, 21-11 by Japan’s Minatsu Mitani.
The other top seeds all advanced safely, including Beiwen Zhang, Cheung Ngan Yi and Nitchaon Jindapol.