Yamaguchi to Shi Yu Qi: Meet the defending champs heading to BWF World C'ships in Delhi

The BWF World Championships return to India after 17 years, held August 17–23 at the Indira Gandhi indoor stadium in New Delhi.

Shi Yu Qi defends his men's singles title; he aims to become the first Chinese man since Chen Long to retain the world crown.

Akane Yamaguchi aims to retain her women's singles title, having won three world titles, becoming only the second women's singles player after Zhang Ning to achieve this.

Kim Won Ho/Seo Seung Jae and Liu Sheng Shu/Tan Ning defend their doubles titles.

Chen Tang Jie/Toh Ee Wei seek to prove their mixed doubles win was not a one-off.