Jamaican sprint king says he is only 50-50 to make it to London in 2017 and could retire after Rio Olympics
Jamaican sprinter storms to 200m victory but is brought back down to earth during lap of honour – video
Fourth major title puts 'mediocre' long-jumper alongside Thompson, Christie, Gunnell and Edwards
Jamaican 'saviour' comes good when it matters as rival Gatlin cracks under pressure in Beijing
Jamaican sprinter cast in the role of athletics saviour against American rival tarnished by two drugs bans
The former Olympic gold medalist and man behind London 2012 must tackle the doping crisis facing his sport
Olympic medal winners are among those to return 'suspicious' blood tests, but so far they have remained anonymous
Five athletes who will be the main attractions at the Olympic Stadium this weekend – in pictures
Out-of-form Jamaican promises fireworks at the Olympic Stadium ahead of the World Championships in Beijing
Teenage sprinter from Anguilla can now represent UK, but decision reignites 'plastic Brit' debate
BBC documentary alleges that US coach used 'banned steroids and unethical practices'
Long-distance legend runs her last ever competitive marathon at the age of 41, as Sunday's event is deemed the biggest ever
Everything you need to know the about 35th London Marathon – and the history of marathons past
World record holder Bolt says reducing rival Gay's drugs ban to one year was 'stupid'
British sprint champion dismisses Arsenal speed claims and offers to race flying Gunners
Andy Vernon's suggestion that Mo Farah gets an easy ride provokes a 'remarkable' outburst from the gold medallist
Can the likes of Adam Gemili and Jodie Williams take the next step up and 'go global'?
Team GB tops the medals table after three golds, a silver and two bronze medals at European championships
Our columnist may not be as quick as Mo: but he can compete when it comes to midnight mysteries