"We understand that Chemmy fell on the upper part of a steep section of the Lake Louise course and continued to tumble down the piste. She suffered an open fracture and was flown by helicopter to a hospital in Banff," said British Ski and Snowboard (BSS) Chief Executive, Dave Edwards.
"We are currently waiting to hear from the medical team as to the full extent of the injury and success of the operation. Chemmy is a great athlete and has worked very hard to be ready for the World Cup season, so missing it will be a big blow. Naturally, we wish her all the best and hope that she makes a rapid and complete recovery."
Chemmy was the first British woman to qualify for the World Cup Finals, the first British skier to win a run in a World Cup race and the first British skier to win the British Land National Ski Championships six times in a row.
Chemmy has competed in three consecutive Olympic Games, in Salt Lake City, Turin and then Vancouver - at both Turin and Vancouver she finished an impressive 11th place. She is currently ranked in the top 30 in the world for Super G, Giant Slalom and Combined and is an ambassador for British sport, encouraging younger athletes to pursue their dreams.
For more information visit British Ski and Snowboard at www.teambss.org.uk or follow them on Twitter: www.twitter.com/TeamBSS