Matthew Mitcham retires from diving

Olympic gold medallist Matthew Mitcham will not compete in Rio after announcing his retirement from diving.The 27-year-old, who claimed gold in the 10-metre platform at the 2008 Beijing Games, is leaving the sport to focus on his media and entertainment career."I have achieved everything I hoped for, including the big three - Olympic gold in 2008, world No.1 in 2010, and Commonwealth gold in 2014 which could never have happened without all the help I've had along the way," Mitcham said on Thursday.Mitcham's final competition dive at the Beijing Games remains the highest individual score in Olympic diving history and made him the first Australian male to win an Olympic gold medal in diving since Dick Eve in 1924.