via.fox40.com
Bolt Takes a Tumble and Can’t Complete Final Race at Worlds
LONDON (AP) — Usain Bolt was ramping into warp speed when suddenly, stunningly, the sprint turned into a somersault. Fifteen steps into the final homestretch of his final race, something gave in his left hamstring. The World's Fastest Man skittered to a stop — hopping, skipping, jumping, then finally dropping to the ground and tumbling forward before coming to a rest.