The 21-year-old former multi-eventer demonstrated all the strength he has acquired from competing as an all-rounder as he led from the first hurdle and was powerful enough to hold off his pursuers on the home straight to win in 48.35 seconds.

Watch the World Athletics Championships LIVE on Eurosport and Eurosport Player

The youngster clasped his face in disbelief afterwards as it dawned that he had beaten European champion Yasmani Copello, (48.49) into the silver medal position while U.S. Olympic champion and race favourite Kerron Clement (48.52) had to settle for bronze.
World Championships
Usain Bolt: The secrets of the fastest man in history
01/08/2017 AT 08:15
It was the first track victory at any World Championships by a Norwegian athlete since Ingrid Kristiansen's 10,000 metres triumph in Rome in 1987.
World Championships
Coe: Athletics must change to remain relevant
04/10/2017 AT 16:20
World Championships
UK Athletics chief defends GB performance at worlds
07/09/2017 AT 16:17