Gold medalist Cassie Sharpe of Canada (C), silver medalist Marie Martinod of France (L) and bronze medalist Brita Sigourney of the U.S. pose for photos during medal ceremony of ladies' ski halfpipe of freestyle skiing at the 2018 PyeongChang Winter Olympic Games at Medal Plaza, PyeongChang, South Korea, Feb. 20, 2018. (Xinhua/Wu Zhuang)