Jamaica's Usain Bolt beat rival Justin Gatlin to win the 200m and bag the sprint double at the World Championships in Beijing.

Bolt was in ascension from the start and true to his name, bolted out of the bend to cross the line in 19.55 seconds, with Gatlin taking silver in 19.74.

"Bolt came here and delivered when he's not had the best of seasons," ex-world champion Michael Johnson told the BBC.

South Africa's Anaso Jobodwana claimed bronze with a national record of 19.87.

Briton Zharnel Hughes finished in fifth spot with a new personal best of 20.02.