Canadian slopestyle snowboarder Mark McMorris poses in Toronto on Friday, Oct. 4, 2013. McMorris's first appearance at the Rosa Khutor Extreme Park earlier this week was marred by pain and frustration.A broken rib from a recent crash at the X Games had made things quite uncomfortable for the Canadian snowboard star. But a solid training run Tuesday changed his mindset and left him optimistic ahead of this week's slopestyle event at the Sochi Olympics THE CANADIAN PRESS/Nathan Denette