( CNN ) -- Double-amputee sprinter Oscar Pistorius will compete at the Olympic Games after he was named in both the individual 400m and the South Africa 4x400m relay squad for London 2012 . The four-time Paralympic Games gold medalist won a silver medal as part of South Africa 's 4x400m relay at the World Championships in Daegu last year , although he was left out of the line-up for the final . He also looked set to be excluded from the individual event in London after failing to run the Olympic ' A ' standard qualification mark twice in international competition . But the South African selectors relaxed their qualification rules Wednesday and named him in both events , much to his delight . `` Today is truly one of the proudest days of my life . To have been selected to represent Team South Africa at the London 2012 Olympic Games in the individual 400m and the 4x400m relay is a real honor and I am so pleased that years of hard work , determination and sacrifice have all come together , '' he told his official website . `` I have a phenomenal team behind me who have helped get me here and will now put everything we can into the final few weeks of preparations before the Olympic Games where I am aiming to race well , post good times and maybe even a personal best time on the biggest stage of them all . '' Pistorius , whose legs were amputated below the knee when he was 11 months old due to a bone defect , runs on special carbon fiber blades from which his nickname `` The Blade Runner '' derives . Saudi female Olympians : Historic breakthrough or false dawn ? He will become the first Paralympian to compete in track and field at the able bodied Olympics . The Johannesburg-born athlete is joined in the South Africa track and field team by Caster Semanya . The 800m world champion was the subject of a gender test by the International Association of Athletics Federations following her victory in Berlin at the world championships three years ago , but has since been cleared to compete . In other selection news , Team Great Britain have announced cyclist David Millar will be part of its road race team . The Scot was handed a two-year doping ban in 2004 , which prevented him competing for Britain in previous Games . But earlier this year , the British Olympic Association was forced by the Court of Arbitration for Sport ( CAS ) to overturn its policy of not selecting athletes who have been found guilty of doping . CAS 's verdict opened the door for 100m sprinter Dwain Chambers to compete at his home Games . Human to Hero : Blade Runner 's 2012 Olympic ambition .
Oscar Pistorius to become first double - amputee Olympian in London . The 25-year - old has been selected in the individual 400 and 4x400 m relay . He had both of his legs amputated when he was six months old . He won a silver medal at last year 's World Championships in the 4 x 400 m relay .