Some of the 20,000 contestants taking part in the Moscow ski-track 2007 try to get ahead of the pack

Germany's Magdalena Neuner warms up ahead of the women's 10 km pursuit in the Biathlon World Championships in Italy

Sam Hoger of the US and Brazil's Lyoto Machida (R) trade blows at an Ultimate Fighting Competition event in Las Vegas

Riders battle for position during the first race of the White Turf meeting on the frozen lake in St Moritz

Poland's Ewelina Staszulonek heads down the track in the women's competition at the Luge World Championship