Connor Fields, the U.S. defending gold medalist in BMX racing, had a brutal crash in the semifinals of his event and left the venue on a stretcher in an ambulance.
"We can confirm that Connor Fields is awake, stable, and awaiting further medical evaluation. He will remain in the hospital under observation," said Dr. Jon Finnoff, the chief medical officer for the United States Olympic and Paralympic Committee.
The 28-year-old was in the third heat of the semifinal, where groups race over a bumpy course with jumps. He started with two excellent rides. Then, disaster struck.