In this file photo taken on March 12, 2018, Australia's Sean Pollard competes during the men’s Snowboard Cross run at the Jeongseon Alpine Centre during the Pyeongchang 2018 Winter Paralympic Games in Pyeongchang. Sean Pollard was surfing in Australia in 2014 when he was attacked by two great white sharks, losing his left arm and right hand and only just escaping alive. PHOTO | SIMON BRUTY |