Bolt to battle to retain world's fastest man tag

Usain Bolt arrived at the last Olympics in Beijing with athletics at a low ebb, but he and the sport were transformed after the Jamaican left with then-world records in both the 100 and 200m.

The ebullient Bolt captured the public's attention and went on to replicate his sprinting prowess at the 2009 World Championships, winning double gold, amazingly in new world records of 9.58 and 19.19 seconds respectively.

The world's fastest man became, and remains, athletics' hottest property, commanding huge appearance fees on the European circuit and earning enough that competing in London is prohibitively expensive thanks to the British taxman.

But in the run-in to the July 27-August 12 Olympic Games, a chink has appeared in Bolt's armour, a shadow of doubt that has not been seen in almost four years. It comes in the shape of training partner Yohan Blake, who stunned the world (but not all athletics pundits) by beating Bolt not just once, but twice, in the Jamaican Olympic trials.

The glass ceiling was well and truly broken. AFP