Britain’s women’s 4x400m relay team of  Zoey Clark, Laviai Nielsen, Eilidh Doyle and Emily Diamond  celebrate winning silver at the World Championships in London.  Photograph: Matthias Hangst/Getty Images.

The former world 400m record holder Michael Johnson has urged the British public not to get carried away with Britain’s late haul of medals at the wor(...)

Usain Bolt: planning to quit the track after competing in the 100m and 4x100m relay at the World Championships in London. Photograph:  Martin Rickett/PA

Usain Bolt could be tempted to reverse his decision to retire from athletics after next month’s World Championships, his American sprint rival Justin (...)

Usain Bolt of Jamaica crosses the finish line first to win his men’s 200 metres heat during the 15th IAAF World Championships at the National Stadium in Beijing. Photograph: Pawel Kopczynski/Reuters

A tired Usain Bolt and an emotionally fatigued Justin Gatlin progressed towards their second blockbuster sprint showdown of the world championships by(...)