Reigning BMX racing gold medalist Connor Fields was carried off on a stretcher after suffering a horror crash in the third semi-final heat at the Tokyo Olympics.
US star Fields was fourth after his opening two heats and landed hard off a jump heading into the first turn in the third run.
The 28-year-old from Las Vegas slammed into the turn and lay on the track as medical personnel rushed out to help him.
Fields was attended to for several minutes before being carried away and stretchered into an ambulance.
He qualified for the finals, but will not be able to race.
He became the first American BMX rider to win gold at the 2016 Rio Games and was a favorite to win it again in Tokyo.
Fields’ crash was followed minutes later by another serious crash in the women’s semi-finals, with Australia’s Saya Sakakibara needing medical attention on the track after coming down heavily.
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