After winning the senior silver medal at Tokyo 2020, Greece will look to go one better at the FINA World Men's Junior Water Polo Championships 2021 ©Getty Images

Greece are chasing a historic third successive International Swimming Federation (FINA) men's junior water polo title when they travel Prague, following up the senior team's silver medal in the Tokyo 2020 Olympics.

There have not been any under-20 events since the last World Championships in Kuwait in 2019.

All four semi-finalists from that tournament return in the Czech capital - defending champions Greece, Serbia - who won senior men's gold at Tokyo 2020 - Croatia and Italy.

Greece, who also won the junior title in Belgrade in 2017 and the European Under-19 Championships and the World Under-18 Championships in 2018, return three players from their victorious 2019 team.

Serbia won bronze in Belgrade and silver in Kuwait, with five players from the 2019 silver medal-winning team returning.

Croatia won the silver medal at the 2017 World Under-20 Championships and finished fourth in Kuwait.

Italy, who won bronze in 2019, lead Group A with Croatia, Uzbekistan, Russia and Argentina.

Serbia are in Group B alongside Spain, the United States, Slovakia, and the Czech hosts.

Brazil, Hungary, Germany and Egypt complete Group C, while Greece are in Group D, with Kazakhstan, South Africa and Montenegro.

Group games run from tomorrow until Wednesday (September 1).

The knockout stage will take place from September 2, leading up to the final on September 5.