Consider this every Olympian's worst nightmare.
French gymnast Samir Ait Said's Olympics ended when he severely injured his left leg while vaulting during team preliminaries on hd ??? ??Saturday.
SEE ALSO: We asked an Olympian what it's like to spend 4 years training for RioSaid's leg bent awkwardly as he tried to land, the sound of the injury echoing through the arena.
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Said writhed on the ground in agony while medical officials tended to him. He exited on a stretcher to a standing ovation.
The injury came minutes after Germany's Andreas Toba hurt his knee during floor exercise. Toba abandoned his routine and was helped off by trainers but managed to compete on pommel horse before exiting to receive medical attention.
Samir Ait Said of France breaks his leg while competing on the vault during the Artistic Gymnastics Men's Team qualification. Credit: Getty Images 
Samir Ait Said of France receives attention after breaking his leg while competing on the vault during the Artistic Gymnastics Men's Team qualification. Credit: Getty Images The U.S. men are leading halfway through the second subdivision thanks to a strong performance from four-time national champion Sam Mikulak. Great Britain, which took third at last year's world championships, is second. The top eight teams in qualifying will move on to Monday night's team final.
Samir Ait Said of France receives medical attention after breaking his leg. Credit: Getty Images Mashable contributed reporting.