Snowboard

A serious back injury will prevent American halfpipe snowboarder Danny Davis from competing in the 2010 Games.

The 21-year-old was injured in a four-wheeling accident over the weekend and will undergo spine surgery on Monday at a Utah hospital, according to a message on his Facebook site.

Davis won the U.S. Grand Prix at Mammoth Mountain in California following a run widely considered the best ever in the halfpipe discipline. 

The management company representing Davis confirmed his injury in a posting on Twitter.

"Danny Davis's doctors remain optimistic and expect a full recovery," the Tweet stated. 

Fans have been directed to Davis' Facebook fan page for further updates.

On Saturday Davis won the men's superpipe competition at the Dew Tour's stop in Snowbasin, Utah.

At Mammoth earlier this month, the 21-year-old Michigan-native beat out 11 competitors, including phenom Shaun White, with a double cork, followed with a Cab 900, a crail, another double cork, and a final spin.

Davis performed the double cork again on Saturday, winning the men's superpipe competition at the Dew Tour's stop in Snowbasin, Utah.

White riled competitors at the beginning of the season with his debut of the double cork at an event in Cardrona, New Zealand.

American rider Kevin Pearce was injured in December while training. Reports suggest Pearce had been attempted a double cork, but fumbled the landing. Pearce remains in hospital with a serious head injury.