FILE - In this Thursday, Jan. 20, 2011 file photo, Australia's Nathan Johnstone performs a trick in the men's Snowboard Halfpipe final at the FIS Snowboard World Championships in La Molina, Spain. Johnstone goes into February's Sochi Winter Olympic Games as one of the podium favourites along with "The Flying Tomato" - American Shaun White, who has won the last two gold medals in the halfpipe discipline. (AP Photo/Manu Fernandez, File)