Shawn Morelli of the United States reacts as she crosses the finishing line during the women's C4 3km individual pursuit gold medal final of the 2018 Para-cycling Track World Championship at the Olympic Park velodrome in Barra, Rio de Janeiro, Brazil, on March 24, 2018. Shawn Morelli took the gold by defeating Emily Petricola of Australia with 3 minutes and 56.576 seconds. (Xinhua/Li Ming)