Armand ‘Mondo’ Duplantis headlines a stellar cast in the Chinese city of Nanjing for a world indoor athletics championships delayed three times by the Covid-19 pandemic. Nanjing was picked to host the biennial event back in 2020, then in 2021 and then again in 2023. They were all moved due to coronavirus rules. In 2022 the event was instead held in Belgrade and in 2023 in Glasgow. It now has the green light and Nanjing’s Cube will play host to 576 athletes from 127 countries competing in 26 events over three days of action from March 21-23. That number includes 11 individual defending champions — notably world record holders Duplantis (pole vault), Devynne Charlton and Grant Holloway (60m hurdles) — and 20 medallists from the Paris 2024 Olympic Games. Duplantis