Heather Mills has been injured in a skiing accident
The charity campaigner - who was accepted on to the British Disabled Ski Team last month - sustained the injury to her leg when skiing at 100 kilometres per hour during a 24-hour race.
She tweeted: "In Austria for the Schladming night race, can`t ski though as injured good knee in charity 24 hr ski race when public were let on the race track whilst skiing 100 kmph + Should be good to ski again soon. (sic)"
The 43-year-old former model - who lost her left leg in a road accident in 1993 - is training hard in the hope of being selected as a participant for the 2014 Paralympics- Games in Russia, which she says would be a "dream come true".
Heather recently explained: "Nobody is on the Paralympic Team until three months before those games. If you`re lucky enough to get on the team, which I am, you get a trial for a year. If I managed to compete, it would be phenomenal - very inspiring for all the kids that I counsel.
"They didn`t believe they could do anything and now they are trying ice skating and rollerblading and biking and swimming, which is wonderful. Having loved sport my whole life, competing in a Paralympics would be a dream come true."