Chinese Olympic champion Sun Yang has won gold in the 400m freestyle final of the 18th FINA World Swimming Championships in South Korea’s Gwangju on July 21. Australian swimmer Mack Horton finished second. Sun invited Horton to have photos taken on the podium but was rejected in what was probably one of the most embarrassing moments in sports. After the press conference, Sun responded to Horton: "You could choose not to respect me, but you must respect China."