Highlights of men's halfpipe qualification of snowboard at PyeongChang Olympics

The multi-exposure photo shows Kent Callister of Australia compete during men's halfpipe qualification of snowboard at the 2018 PyeongChang Winter Olympic Games at Phoenix Snow Park in PyeongChang, South Korea, on Feb. 13, 2018. Kent Callister was qualified with 77 points. (Xinhua/Lui Siu Wai)