Usain Bolt ended his stellar career in excruciating pain.
The Jamaican great crumpled to the track with a left-leg injury as he was chasing a final gold medal for the Jamaican 400-meter relay team on Saturday at the world championships.
Having to make up lots of ground on the anchor leg, Bolt suddenly screamed, stumbled and somersaulted as he came down, his golden farewell shattered by the first injury he has experienced at a major competition.
That wasn't the only surprise. Britain went on to beat the United States in a tight finish.
The 60,000-capacity stadium was primed for one last Bolt show, one last “To the World” pose after a victory, but the injury made...