Only three cities, all in Asia, remain in the running to host the 2021 and 2023 World Swimming Championships after two more potential bidders dropped out, FINA, swimming world's governing body, told Reuters.

At least eight countries had expressed some interest in wanting to host the sport's showcase event, but just three candidates remain in contention: Doha, Fukuoka, and Nanjing, China.

FINA will vote to decide which two will host the 2021 and 2023 championships at a meeting in Dubai on Nov. 8.