The double world youth sprint champion is to compete for Japan at the IAAF World Championships as further teams are named for the event

Double world youth sprint champion Abdul Hakim Sani Brown is set to become the youngest ever athlete to contest the 200m at the IAAF World Championships after being named on Japan's team for the event in Beijing from August 22-30.

The 16-year-old, who broke both the 100m and 200m championship records at the World Youths in Cali in July, ran 20.34 for the longer sprint to beat a mark set by Usain Bolt and move second behind only the Jamaican sprint star on the world youth all-time list.

He is due to be joined by the likes of world 20km race walk record-holder Yusuke Suzuki on Japan's team. The announced team can be found listed here.

Further teams, including those for Czech Republic, Kenya and France, have also recently been named.

Zuzana Hejnova and Vitezslav Vesely are set to defend their 400m hurdles and javelin titles respectively, while world indoor 400m champion Pavel Maslak and Olympic javelin champion Barbora Spotakova also feature. Read more on the Czech team for Beijing here.

David Rudisha and Eunice Sum (800m), Asbel Kiprop (1500m), Caleb Ndiku (5000m), Julius Yego (javelin), Dennis Kimetto, Wilson Kipsang and Edna Kiplagat (marathon) are among the names on the Kenyan team, found listed here, while world pole vault record-holder and Olympic champion Renaud Lavillenie leads a French team which also includes the likes of Jimmy Vicaut (100m), Pascal Martinot-Lagarde (110m hurdles) and Melina Robert-Michon (discus). The French team is listed here.