ROSA KHUTOR, Russia (AFP) - Finnish snowboarder Marika Enne on Tuesday became the second crash victim of the Sochi Winter Olympics' controversial slopestyle course, which has already shattered the hopes of one gold medal favourite.

The 21-year-old crash-landed on the final jump, hitting the snow and tumbling forward on a course widely condemned as too dangerous.

She was able to complete her run, but was then carried away on a stretcher.

"She hit her head," Finland team coach Mats Lindfors said.

On Monday, Norway's Torstein Horgmo, who had been a gold medal favourite, was ruled out of the Olympics after suffering a broken collar-bone following a spectacular crash.

The 26-year-old crashed on the rail feature of the slopestyle run at Rosa Khutor Extreme Park, an accident which forced course builders to make radical changes to some of the jumps overnight.

The alterations followed a meeting of snowboarders in the aftermath of Horgmo's crash.

Australia's defending half-pipe champion, Torah Bright, tweeted a photograph of the athletes meeting on the course.

"Riders discussing much-needed changes to slope style. Changes have been made overnight. Heading up now to check it!," wrote Bright, who is chasing three golds at the Olympics.