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Laura Muir got her world championships challenge off to a good start by coming through the heat

Laura Muir makes impressive start to 1500m medal challenge as she eases through heat into semi-final

Special effects and fireworks went off as the athletes were still waiting to start

World Athletics organisers make bungling start as athletes kept waiting for five minutes on blocks before racing

Usain Bolt shows off crazy dance moves while warming up for 100m heat at World Athletics Championships

Usain Bolt races in 100m heat following the opening ceremony

When is World Athletics Championship opening ceremony, what channel is it on?

Preview

When are the World Athletics Championships, what is the schedule, and when are Mo Farah and Usain Bolt on?

In Focus

ready steady mo

GB hero Mo Farah is the master race tactician who times his run to the line to perfection again and again

Retiring Usain Bolt claims drugs cheats will 'kill' athletics as one of the world's greatest showmen prepares to hang up his spikes after World Championships in London

Usain Bolt shows he is still the Greatest Show on Earth as he promises to bow out as the unbeatable one

Exclusive

Retiring Usain Bolt raises the bar for next generation of sprinters, says Great Britain's Zharnel Hughes

Usain Bolt denies booting rival Andre de Grasse out of 100m clash because he was scared of losing

Usain Bolt has promised to say goodbye in style by winning the 100m at the world athletics championships in London

Usain Bolt aims to retire in style at World Athletics Championships in London with 100m gold medal

Sprinter Dina Asher-Smith poses for stunning body paint snaps - but is stuck watching box sets on sofa while she recovers from foot injury