Norway's Petter Northug (front L) celebrates as he crosses the finish line in front of Germany's Axel Teichmann (front R) Canada's Devon Kershaw, Germany's Tobias Angerer and Sweden's Johan Olsson (background L-R) during the men's 50 km mass start classic cross-country final at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 28, 2010. Northug won the gold medal ahead of Teichmann who won silver and Olsson who took bronze. REUTERS/Michael Dalder (CANADA)