 Marc-André Fleury won two silvers at which event held in late December?
Marc-André Fleury: Marc-André Fleury (born November 28, 1984) is a French-Canadian professional ice hockey goaltender playing for the Vegas Golden Knights of the National Hockey League (NHL). Marc-André Fleury:  Internationally, Fleury has represented Canada twice as a junior, winning back-to-back silver medals at the World Junior Championships in 2003 and 2004. IIHF World U20 Championship:  It is traditionally held in late December, ending in the beginning of January.
World Junior Championships