Reigning Olympic champion Connor Fields was stretchered off after he crashed out and failed to finish during the third round of the men’s cycling BMX racing semifinal on Friday morning in Japan.
Although the US rider's overall score qualified him for the final, he will not race for a medal. Fields was taken away in an ambulance.
In the women's semifinal, Australia's Saya Sakakibara was also involved in a crash in the third run.
Sakakibara was leading the race when she went down, but she did not finish the run and did not reach the final.
She was stretchered off and is being attended to.