In the men's event the home side will contest Pool A alongside Poland, who won the world title back-to-back in 2014 and 2018.

Rio 2016 Olympic silver medallists Italy, Iran, Canada and Venezuela will also contest the pool.

Reigning men's Olympic champions Brazil will begin their defence in Pool B as they bid to keep hold of the title they memorably won on home soil in Rio.

The three-time gold medallists are joined by fellow triple Olympic champions United States, reigning Volleyball Nations League champions Russia, Argentina, France and Tunisia.

Japan's women will play in Pool A with Serbia, the reigning world and European champions and the Rio 2016 silver medallists.

Double Olympic champions Brazil, South Korea, Dominican Republic and Kenya are also in the group.

Triple Olympic champions China will begin the defence of their Rio 2016 gold in Pool B, alongside back-to-back Nations League winners the US.

Russia, Italy, Argentina and Turkey complete the pool.

Teams were assigned to their pools using the "serpentine method" after Japan were automatically put into Pool A as hosts.

This groups teams depending on their International Volleyball Federation world ranking.

The top four teams in each pool will go through to the quarter-finals, with the winners playing the side who finished fourth in the other group.

A draw will be made to determine the opponents of the second and third-place sides, who must come from a different pool.

Volleyball at Tokyo 2020 will be played at the new Ariake Arena, which was officially inaugurated yesterday.