Katarina Johnson-Thompson and Great Britain's leading female distance runner Laura Muir are among the home athletes competing early on the evening of day seven of the London World Championships, introduced by Gabby Logan. Muir, having already competed in the 1,500m, is joined in the 5,000m heats by compatriots Steph Twell and Eilish McColgan, while Johnson-Thompson attempts to reach the high jump final just four days after finishing the heptathlon. It is also the qualifying phase of the men's javelin and the first round of the men's 800m. Steve Cram leads the commentary.