Liu Xiang, former Olympic 110m hurdles champion, retired
He became an icon in China after winning the country's first Olympic men's track and field gold medal in the 110 metres hurdles in Athens in 2004. He held the world record in 2006 with a time of 12.88 seconds.
Chinese hurdler Liu Xiang retired on 7 April 2015. Xiang, the first man from China to win an Olympic gold medal in track and field, announced his retirement due to injury.
He sporting career was affected by an Achilles problem, which made him to pull out at 2008 Beijing Olympics. The injury also made him crash out from the 2012 London Olympics.
He won the Gold medal at the 2004 Athens Olympics in the 110m hurdles track event. For this Olympic gold he equaled the then world record of 12.91. Later in July 2006, he improved the world record to 12.88 seconds in Lausanne, Switzerland.
He also won the Gold medal at the 2007 IAAF World Championships.
He is the first Chinese athlete to achieve the triple crown of athletics, that is, World Record Holder, World Champion and Olympic Champion.
Liu, one of his nation's highest profile sports stars, is one of the official ambassadors for the IAAF World Championships, Beijing 2015.