Let’s move to 2004 when he was all set to defend the World Juniors title–but boom, a hamstring injury hit him out of the race. And now, Usain Bolt remembers that anger, so full of despair over ...

Without proper recovery, a hamstring injury can be career ending for some athletes. Jamaican Usain Bolt is often hailed as the greatest athlete of all time. But when you crunch the numbers ...