Lin Dan, Yamaguchi crash out, Momota storms into last 16 at badminton worlds

Lin, who turns 36 in October, blames organizers for "unfair" arrangement of the match schedule, which gave him mere 15 hours to recover from the first round match.

His teammate Lu Guangzu was beaten by 14th seed Lee Zii Jia 12-21, 21-14, 21-15, leaving reigning Olympic champion and third seed Chen Long the only Chinese player in the men's singles draw. Chen, who won the world title in 2014 and 2015, takes on Lee Cheuk Yiu of Hong Kong, China on Wednesday.

Defending champion and world No. 1 Kento Momota of Japan cruised into the last 16 with a comfortable victory over Luis Enrique Penalver of Spain 21-10, 21-7.

Eighth seed Kenta Nishimoto, also of Japan, advanced by beating Chinese Taipei's Tang Tzu Wei 25-23, 13-21, 21-16.

In the women's draw, China's sixth seed He Bingjiao beat Japan's Aya Ohori 21-15, 18-21, 21-12 while her teammate and 13th seed Han Yun defeated another Japanese player Sayaka Takahashi.

Thailand's seventh seed Ratchanok Intanon beat Nitchaon Jindapol 22-20, 21-14 in an all-Thai affair.