Poland's Justyna Kowalczyk celebrates after winning the women's 30 km mass start classic cross-country final at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 27, 2010. Kowalczyk won the gold medal ahead of Norway's Marit Bjoergen who won silver and Finland's Aino-Kaisa Saarinen who took bronze. REUTERS/Michael Dalder (CANADA)