Usain Bolt will need three months of rehabilitation after suffering a left hamstring tear in his last race at the world championships on Saturday.
Bolt pulled up with the leg injury on the anchor leg of the 4x100m relay at worlds and then tumbled onto the track not yet halfway to the finish line.
A wheelchair was brought out, but Bolt got up and walked across the finish line, aided by his teammates.
Since, unconfirmed reports have surfaced that Bolt could play in a Manchester United exhibition game, but the seriousness of his injury revealed Thursday could put an end to that, at least for now.