A total of 280 athletes from 35 nations are set to compete at the event, scheduled to run from tomorrow until March 21.

The top two wrestlers from each of the 18 weight classes across men’s freestyle, Greco-Roman and women’s freestyle will qualify for the Games.

It will be the third qualifying event for Tokyo 2020 after wrestlers sealed their places by finishing in the top six at the 2016 World Championships and top two at the Pan American Olympic Games Qualifier.

Two-time Olympic champion Roman Vlasov has been replaced as Russia's 77-kilograms representative by Aleksandr Chekhirkin.

The last time Chekhirkin took Vlasov’s place was also in Budapest where he captured gold at the 2018 World Championships.

Russia have also made changes to their Greco-Roman line-up with Olympic champion Davit Chakvetadze making way for Milad Alirzaev at 87kg.

Despite owning four world titles and three Olympic medals, Georgian Vladimer Khinchegashvili and Azerbaijan’s Haji Aliyev have yet to book their tickets to the Japanese capital.

But to do so they will have to navigate a 65kg category that features 17 wrestlers that have accumulated 11 world titles and three Olympic medals between them.

Magomedmurad Gadzhiev of Poland, Vladimir Dubov of Bulgaria and Vasyl Shuptar of Ukraine have entered the 65kg division along with Armenian rising star Vazgen Tevanyan.

Poland's two-time world medallist Gadzhiev features at 65kg for the first time since the 2018 World Championships.

He has since competed up at 70kg, where he was a world bronze medallist in 2019 and individual World Cup champion in 2020.

Two-time world medallist Dubov will try to qualify Bulgaria for the Olympics in just his fifth outing at 65kg.

Competition is taking place within a bio-secure bubble at BOK Hall, where a series of coronavirus countermeasures are in place.