Great Britain’s Zharnel Hughes powered into the 100 metres semi-finals at the World Championships as Christian Coleman sent out a gold medal warning.

European champion Hughes won his heat in 10.08 seconds to comfortably go through on the opening day in Doha on Friday.

Coleman was the only man to go under 10 seconds as the American clocked 9.98secs in the final heat to underline his status as favourite.

They were joined in Saturday’s semis by Adam Gemili, who came third in his heat, while defending champion Justin Gatlin, Andre De Grasse and Yohan Blake all eased through.

Hughes is a medal contender at the Khalifa International Stadium and could land Great Britain’s 100th World Championship medal in Saturday’s final.

I’m feeling well. As long as I get it together I know I’ll be fine.

Zharnel Hughes

GB team-mate Ojie Edoburun ran 10.23s in the first heat, coming fifth, but qualified as the final fastest loser.

But it was Coleman in the final heat who looked most impressive.

The American, the fastest man in the world this year, arrived under a cloud, having initially been charged with missing three drugs tests – known as whereabouts failures – in 12 months, a claim he contested.

It carried an automatic one-year ban, but the United States Anti-Doping Agency withdrew the charge after guidance from the World Anti-Doping Agency.

Lord Coe, president of athletics’ world governing body the IAAF, also defended Coleman after criticism from Michael Johnson.